Hello, 
I got this when starting up emacs :  
 
 ■  Warning (org-element-cache): org-element--cache: Org parser error in CalnArch17.txt::#<marker at 1580201 in CalnArch17.txt>. Resetting.
 The error was: (error "Invalid search bound (wrong side of point)")
 Backtrace:
nil
 Please report this to Org mode mailing list (M-x org-submit-bug-report).
 ■  Warning (org-element-cache): org-element--cache: Org parser error in CalnArch18.txt::#<marker at 1297705 in CalnArch18.txt>. Resetting.
 The error was: (error "Invalid search bound (wrong side of point)")
 Backtrace:
nil
 Please report this to Org mode mailing list (M-x org-submit-bug-report).
 
Sorry, 
I had to delete some private information from my config
and I cannot send my private files, and I can't imagine how to reproduce this with anonymized data
but if somebody is interested in looking at this error, I am willing to answer questions 
 
Regards
Chris
 
------------------------------------------------------------------------
Emacs  : GNU Emacs 29.1 (build 2, x86_64-w64-mingw32)
 of 2023-08-02
Package: Org mode version 9.6.6 (release_9.6.6 @ c:/Program Files/Emacs/emacs-29.1/share/emacs/29.1/lisp/org/)
current state:
==============
(setq
 org-link-elisp-confirm-function 'yes-or-no-p
 org-bibtex-headline-format-function #[257 "\300�\236A\207" [:title] 3 "\n\n(fn ENTRY)"]
 org-agenda-files '(" here I have about 20 Org-files between 2 KByte and 2 MByte ")
 org-replace-disputed-keys t
 org-persist-after-read-hook '(org-element--cache-persist-after-read)
 org-export-before-parsing-hook '(org-attach-expand-links)
 org-cycle-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand)
 org-default-notes-file "k:/upload/Sync_with_Nokia/Org/notes.org"
 org-archive-hook '(org-attach-archive-delete-maybe)
 org-odt-format-inlinetask-function 'org-odt-format-inlinetask-default-function
 org-ascii-format-drawer-function #[771 "�\207" [] 4 "\n\n(fn NAME CONTENTS WIDTH)"]
 org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-show-empty-lines
          org-cycle-optimize-window-after-visibility-change org-cycle-display-inline-images)
 org-persist-before-read-hook '(org-element--cache-persist-before-read)
 org-mode-hook '(#[0 "\300\301\302\303\304$\207"
           [add-hook change-major-mode-hook org-fold-show-all append local] 5]
         #[0 "\300\301\302\303\304$\207"
           [add-hook change-major-mode-hook org-babel-show-result-all append local] 5]
         org-babel-result-hide-spec org-babel-hide-all-hashes)
 org-latex-format-drawer-function #[514 "\207" [] 3 "\n\n(fn _ CONTENTS)"]
 org-latex-format-headline-function 'org-latex-format-headline-default-function
 org-confirm-shell-link-function 'yes-or-no-p
 org-html-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
 outline-isearch-open-invisible-function 'outline-isearch-open-invisible
 org-odt-format-headline-function 'org-odt-format-headline-default-function
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-src-mode-hook '(org-src-babel-configure-edit-buffer org-src-mode-configure-edit-buffer)
 org-confirm-elisp-link-function 'yes-or-no-p
 org-tags-exclude-from-inheritance '(" here I have 7 Tags ")
 org-todo-keywords '((sequence "TODO" "|" "DONE" "BACKLOG" "CANCELED" "ARCHIVE"))
 org-support-shift-select t
 org-speed-command-hook '(org-speed-command-activate org-babel-speed-command-activate)
 org-html-format-inlinetask-function 'org-html-format-inlinetask-default-function
 org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default
 org-odt-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
 org-use-property-inheritance t
 org-fold-core-isearch-open-function 'org-fold-core--isearch-reveal
 org-latex-format-inlinetask-function 'org-latex-format-inlinetask-default-function
 org-persist-before-write-hook '(org-element--cache-persist-before-write)
 org-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand)
 org-link-shell-confirm-function 'yes-or-no-p
 org-babel-pre-tangle-hook '(save-buffer)
 org-agenda-loop-over-headlines-in-active-region nil
 org-occur-hook '(org-first-headline-recenter)
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-link-parameters '(("attachment" :follow org-attach-follow :complete org-attach-complete-link)
               ("eww" :follow org-eww-open :store org-eww-store-link)
               ("rmail" :follow org-rmail-open :store org-rmail-store-link)
               ("mhe" :follow org-mhe-open :store org-mhe-store-link)
               ("irc" :follow org-irc-visit :store org-irc-store-link :export org-irc-export)
               ("info" :follow org-info-open :export org-info-export :store
            org-info-store-link :insert-description org-info-description-as-command)
               ("gnus" :follow org-gnus-open :store org-gnus-store-link)
               ("docview" :follow org-docview-open :export org-docview-export :store
            org-docview-store-link)
               ("bibtex" :follow org-bibtex-open :store org-bibtex-store-link)
               ("bbdb" :follow org-bbdb-open :export org-bbdb-export :complete
            org-bbdb-complete-link :store org-bbdb-store-link)
               ("w3m" :store org-w3m-store-link)
               ("doi" :follow org-link-doi-open :export org-link-doi-export)
               ("id" :follow org-id-open) ("file+sys") ("file+emacs")
               ("shell" :follow org-link--open-shell)
               ("news" :follow
            #[514 "\301\300\302�Q�\"\207" ["news" browse-url ":"] 6 "\n\n(fn URL ARG)"])
               ("mailto" :follow
            #[514 "\301\300\302�Q�\"\207" ["mailto" browse-url ":"] 6
              "\n\n(fn URL ARG)"]
            )
               ("https" :follow
            #[514 "\301\300\302�Q�\"\207" ["https" browse-url ":"] 6 "\n\n(fn URL ARG)"]
            )
               ("http" :follow
            #[514 "\301\300\302�Q�\"\207" ["http" browse-url ":"] 6 "\n\n(fn URL ARG)"])
               ("ftp" :follow
            #[514 "\301\300\302�Q�\"\207" ["ftp" browse-url ":"] 6 "\n\n(fn URL ARG)"])
               ("help" :follow org-link--open-help :store org-link--store-help)
               ("file" :complete org-link-complete-file)
               ("elisp" :follow org-link--open-elisp))
 org-html-format-headline-function 'org-html-format-headline-default-function
 org-metaup-hook '(org-babel-load-in-session-maybe)
 org-tags-column 0
 )