A white screen normally means a missing or corrupted php file. Delete the wp-admin and wp-includes folders and upload a fresh copy to the server.
Okay I did what you said. Deleted both folders and uploaded a new copy from 3.3 WordPress.
The site loads but when i try to get into admin i still get a blank white screen.
What next?
I checked my error logs and I see about 20 lines of this:
WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 for query SELECTtheme_template,redirectFROMwp_md_mobilemetaWHEREmobile_id= made by require_once, require_once, require_once, include_once, mobileDetect
I just updated 3 wordpress sites. One site no problem. Two sites have this same problem and both sites have the WP mobile detector plugin installed. I tried renaming the plugin and still cannot access the admin panel. Any suggestions anyone?
Thanks,
Gibs
I fixed it myself. The 2nd non-working site gave me an error exceeding memory limit. So it seems even though the 1st site gave an error with the WP mobile plugin the real problem was the memory limit. Only the 2nd non-working site after the upgrade gave that clue. Don’t know why the errors were different but the problem is now fixed.
Gibs
If you have memory related problem try to increase default wordpress memory size to 64 mb … if you have too many plugin installed than this error is common.
