grapheme_substr: length is beyond start

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When trying to add a blog post I constantly get this error, it appears every time the page auto saves, I have done google searches to see if there is a fix, and everything that is listed I have tried to no avail....... I am completely stuck.

It is version 5.7.5.6

helenmarie
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MrKDilkington replied on at Permalink Reply
MrKDilkington
Hi helenmarie,

You are using an older version of concrete5. I would make a full site backup (database and files) and see if updating to the latest 5.7.5.13 resolves the issue.

If it doesn't fix the issue, I would temporarily enable debug errors and reply with the full error and an error screenshot.
Dashboard > System & Settings > Environment > Debug Settings > Error Detail > Show the debug error output