XF 1.5 sign up not working after upgrade to 1.5.1

whenever someone tries to sign up they get:
Please correct the following errors:
  1. Some fields contained unexpected data. Please try again or contact the administrator.
  2. Please enter a name that is at least 3 characters long.
  3. Please enter a valid email.
  4. Please select a valid time zone.
  5. Please enter a valid password.
this is given regardless of the data.

I also get this error when trying to fix a problem with an outdated template:
Fatal error: Class 'XenForo_Error' not found in /home/workrela/public_html/skeptiko-forum.com/library/TMS/Model/Style.php on line 81

are these problems related? how do I fix?

A
www.skeptiko-forum.com
 
The sign up issue is likely related to outdated templates or an add-on.

Does it work in a completely default unedited style with all add-ons disabled?

The second issue is related to the TMS add-on.
You may need to post in the resource thread for support.
 
The sign up issue is likely related to outdated templates or an add-on.

Does it work in a completely default unedited style with all add-ons disabled?

The second issue is related to the TMS add-on.
You may need to post in the resource thread for support.
same with all add-ons disabled.

but I can't access styles: Fatal error: Class 'XenForo_Error' not found in /home/workrela/public_html/skeptiko-forum.com/library/TMS/Model/Style.php on line 81

I will post in that thread.
 
There's code running there that's part of an add-on though.

That said, I would run the file health check. Sounds like files haven't been uploaded correctly.
 
There's code running there that's part of an add-on though.

That said, I would run the file health check. Sounds like files haven't been uploaded correctly.
this.

I have disabled the TMS addon.

I ran the file health check:
File Health Check
All 1,345 checked files are present and correct.

still have problem signing up.

Please correct the following errors:

Some fields contained unexpected data. Please try again or contact the administrator.
Please enter a name that is at least 3 characters long.
Please enter a valid email.
Please select a valid time zone.
Please enter a valid password.
 
this.

I have disabled the TMS addon.

I ran the file health check:
File Health Check
All 1,345 checked files are present and correct.

still have problem signing up.

Please correct the following errors:

Some fields contained unexpected data. Please try again or contact the administrator.
Please enter a name that is at least 3 characters long.
Please enter a valid email.
Please select a valid time zone.
Please enter a valid password.
resolved. thx all.

needed to update templates.
 
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