I tried updating it but came across an unzip error, maybe unicode related. I've also noticed in my Icecat there are all these icons that are showing as random korean characters, so I wonder if my configuration is wrong somehow??:
 

starting phase `unpack'
Archive:  /gnu/store/lcnarbk2vd6l1qj77i2s4ny92chzpbzg-Open_Data.zip
   creating: Open_Data/
   creating: Open_Data/Fonts/
  inflating: Open_Data/Fonts/png_24x24.zip  
  inflating: Open_Data/Fonts/TW-Kai-98_1.ttf  
  inflating: Open_Data/Fonts/TW-Kai-Ext-B-98_1.ttf  
  inflating: Open_Data/Fonts/TW-Kai-Plus-98_1.ttf  
  inflating: Open_Data/Fonts/TW-Sung-98_1.ttf  
  inflating: Open_Data/Fonts/TW-Sung-Ext-B-98_1.ttf  
  inflating: Open_Data/Fonts/TW-Sung-Plus-98_1.ttf  
Open_Data/Fonts/#U5168#U5b57#U5eab#U5b57#U578b#U8aaa#U660e#U6587#U4ef6.txt:  mismatching "local" filename (Open_Data/Fonts/???????????????????????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/Fonts/#U5168#U5b57#U5eab#U5b57#U578b#U8aaa#U660e#U6587#U4ef6.txt  
   creating: Open_Data/MapingTables/
   creating: Open_Data/MapingTables/Big5/
  inflating: Open_Data/MapingTables/Big5/CNS2BIG5.txt  
  inflating: Open_Data/MapingTables/Big5/CNS2BIG5_Big5E.txt  
Open_Data/MapingTables/Big5/CNS2BIG5_#U4e03#U500b#U501a#U5929#U5916#U5b57.txt:  mismatching "local" filename (Open_Data/MapingTables/Big5/CNS2BIG5_??????????????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/Big5/CNS2BIG5_#U4e03#U500b#U501a#U5929#U5916#U5b57.txt  
Open_Data/MapingTables/Big5/CNS2BIG5_#U7b26#U865f.txt:  mismatching "local" filename (Open_Data/MapingTables/Big5/CNS2BIG5_??????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/Big5/CNS2BIG5_#U7b26#U865f.txt  
  inflating: Open_Data/MapingTables/CNS2DCI.txt  
  inflating: Open_Data/MapingTables/CNS2FIN.txt  
  inflating: Open_Data/MapingTables/CNS2INC.txt  
  inflating: Open_Data/MapingTables/CNS2TAX.txt  
   creating: Open_Data/MapingTables/Unicode/
  inflating: Open_Data/MapingTables/Unicode/CNS2UNICODE_Unicode 15.txt  
  inflating: Open_Data/MapingTables/Unicode/CNS2UNICODE_Unicode 2.txt  
  inflating: Open_Data/MapingTables/Unicode/CNS2UNICODE_Unicode BMP.txt  
Open_Data/MapingTables/#U5168#U5b57#U5eab#U4e2d#U6587#U5c0d#U7167#U8868#U8aaa#U660e#U6587#U4ef6.txt:  mismatching "local" filename (Open_Data/MapingTables/????????????????????????????????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5168#U5b57#U5eab#U4e2d#U6587#U5c0d#U7167#U8868#U8aaa#U660e#U6587#U4ef6.txt  
Open_Data/MapingTables/#U5730#U653f/:  mismatching "local" filename (Open_Data/MapingTables/??????/),
         continuing with "central" filename version
   creating: Open_Data/MapingTables/#U5730#U653f/
Open_Data/MapingTables/#U5730#U653f/#U5357#U6295#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U5357#U6295#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U53f0#U4e2d#U5e02.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U53f0#U4e2d#U5e02.txt  
Open_Data/MapingTables/#U5730#U653f/#U53f0#U4e2d#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U53f0#U4e2d#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U53f0#U5317#U5e02.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U53f0#U5317#U5e02.txt  
Open_Data/MapingTables/#U5730#U653f/#U53f0#U5317#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U53f0#U5317#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U53f0#U5357#U5e02.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U53f0#U5357#U5e02.txt  
Open_Data/MapingTables/#U5730#U653f/#U53f0#U5357#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U53f0#U5357#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U53f0#U6771#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U53f0#U6771#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U5609#U7fa9#U5e02.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U5609#U7fa9#U5e02.txt  
Open_Data/MapingTables/#U5730#U653f/#U5609#U7fa9#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U5609#U7fa9#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U57fa#U9686#U5e02.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U57fa#U9686#U5e02.txt  
Open_Data/MapingTables/#U5730#U653f/#U5b9c#U862d#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U5b9c#U862d#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U5c4f#U6771#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U5c4f#U6771#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U5f70#U5316#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U5f70#U5316#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U65b0#U7af9#U5e02.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U65b0#U7af9#U5e02.txt  
Open_Data/MapingTables/#U5730#U653f/#U65b0#U7af9#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U65b0#U7af9#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U6843#U5712#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U6843#U5712#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U6f8e#U6e56#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U6f8e#U6e56#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U82b1#U84ee#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U82b1#U84ee#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U82d7#U6817#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U82d7#U6817#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U9023#U6c5f#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U9023#U6c5f#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U91d1#U9580#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U91d1#U9580#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U96f2#U6797#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U96f2#U6797#U7e23.txt  
Open_Data/MapingTables/#U5730#U653f/#U9ad8#U96c4#U5e02.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U9ad8#U96c4#U5e02.txt  
Open_Data/MapingTables/#U5730#U653f/#U9ad8#U96c4#U7e23.txt:  mismatching "local" filename (Open_Data/MapingTables/??????/?????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/MapingTables/#U5730#U653f/#U9ad8#U96c4#U7e23.txt  
   creating: Open_Data/Properties/
  inflating: Open_Data/Properties/CNS_cangjie.txt  
  inflating: Open_Data/Properties/CNS_component.txt  
  inflating: Open_Data/Properties/CNS_component_word.txt  
  inflating: Open_Data/Properties/CNS_component_word.zip  
  inflating: Open_Data/Properties/CNS_phonetic.txt  
  inflating: Open_Data/Properties/CNS_pinyin_1.txt  
  inflating: Open_Data/Properties/CNS_pinyin_2.txt  
  inflating: Open_Data/Properties/CNS_radical.txt  
  inflating: Open_Data/Properties/CNS_radical_word.txt  
  inflating: Open_Data/Properties/CNS_source.txt  
  inflating: Open_Data/Properties/CNS_stroke.txt  
  inflating: Open_Data/Properties/CNS_strokes_sequence.txt  
Open_Data/Properties/#U5168#U5b57#U5eab#U5c6c#U6027#U8cc7#U6599#U8aaa#U660e#U6587#U4ef6.txt:  mismatching "local" filename (Open_Data/Properties/?????????????????????????????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/Properties/#U5168#U5b57#U5eab#U5c6c#U6027#U8cc7#U6599#U8aaa#U660e#U6587#U4ef6.txt  
   creating: Open_Data/Voice/
  inflating: Open_Data/Voice/CNS_pinyin_voice.zip  
Open_Data/Voice/#U5168#U5b57#U5eab#U97f3#U6a94#U8aaa#U660e#U6587#U4ef6.txt:  mismatching "local" filename (Open_Data/Voice/???????????????????????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/Voice/#U5168#U5b57#U5eab#U97f3#U6a94#U8aaa#U660e#U6587#U4ef6.txt  
Open_Data/#U8cc7#U6599#U66f4#U65b0#U8aaa#U660e.txt:  mismatching "local" filename (Open_Data/??????????????????.txt),
         continuing with "central" filename version
  inflating: Open_Data/#U8cc7#U6599#U66f4#U65b0#U8aaa#U660e.txt  
error: in phase 'unpack': uncaught exception:
%exception #<&invoke-error program: "unzip" arguments: ("/gnu/store/lcnarbk2vd6l1qj77i2s4ny92chzpbzg-Open_Data.zip") exit-status: 1 term-signal: #f stop-signal: #f>