Internal Service Error — can’t save certain Joomla! article
This turned out to be a mod_security issue because the article in question included the word “update”.
Troubleshooting: create and save a new article. Fine.
Copy and paste html from “guilty” article — Internal Service Error message.
Copy and paste 1/2 of the html — Internal Service Error Message.
Copy and paste the OTHER 1/2 of the html — Fine!
Add bit by bit until the Error raised it’s ugly head again —
Examine that bit and change word “update” to “up-date” — Fine!
I remember this from A LONG TIME AGO – where the guilty word was “select”.
I’ve asked by hosting provider to help — will post again about the procedure to whitelist certain words.