Answered All Manager pages working fine, until suddenly one stopped working.

I'm in the process of updating my website content and upgrading to 2.3. It was going well, and I was editing a particular page a lot. Suddenly just that one page decided to stop showing up. When I click the link to edit that page in the Resource tab, it loads a totally white page. The source code for the page looks pretty much normal, but it's just white. All the other manager pages are still working perfectly.

I'm not much of a dev, more of a designer. The safari bug checker gives 1 error which says "TypeError: null is not an object (evaluating 'this.el.dom')" which is meaningless to me.

I tried flushing permissions, clearing cache, logging out all users, and removing locks. Nothing helped.

Any help is deeply appreciated.

Try deleting all files in the core/cache directory and clearing your browser cache and cookies.

I tried all those things, also. No luck. The same error occurs on both Chrome and Safari.

Can you see that page in the front end?

Try disabling any plugins that might affect the page (one at a time, so you can see if one is causing the problem).

If there are any snippets in the page content or its template, disable them (again one at a time) by inserting a space between the opening brackets.

Yes, the page is visible in the front end.

I have no plugins running in the site, and my only snippet is Formit, which is running on several other pages with the same form, and no issues.

I'm hosting my site and mysql on 1and1. Is it possible that they would be limiting me somehow?

It's unlikely that the host is doing anything that would affect just one page, though it could possibly be an issue with mod_security. Usually, though, mod_security problems just keep you from saving the page.

I think the next thing to try is logging out then going into PhpMyAdmin and repairing all tables in the DB. Delete all files in the core/cache directory again after the repair and before logging in.

Thanks again BobRay. I logged out, repaired the tables, and cleared the cache. No luck.

I finally just recreated the page using one of my other pages that was a close copy.

Here's a clue to anyone who might be trying to figure out what was going on: when I Duplicated the page, the new duplicate page also displayed a blank white page when loaded. So it must be something inside the page. It's a mystery to me!

Well, that did it! I went into the phpmyadmin and the first thing I did was remove the content field. Saved, reloaded, and the manager page loaded, just fine. Strange thing! Now to find what I screwed up...

Thanks so much for your time, BobRay.

Merry Christmas!