hello,
Since switching to version 3.7 I have this error
Error 1054 Unknown column 'a.category' in 'where clause' with search and when I select components "search" same error
I tried to manage database correction, and find out, but it does not find anything
I specify that I am in multilanguage
joomla 3.7.4. and all is update
| Labels | 
                                        Added: 
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| Status | New | ⇒ | Closed | 
| Closed_Date | 0000-00-00 00:00:00 | ⇒ | 2017-08-12 13:45:49 | 
| Closed_By | ⇒ | babgrib | 
| Status | Closed | ⇒ | New | 
| Closed_Date | 2017-08-12 13:45:49 | ⇒ | |
| Closed_By | babgrib | ⇒ | 
have you a solution ?
| Category | ⇒ | com_categories SQL | 
| Status | New | ⇒ | Closed | 
| Closed_Date | 0000-00-00 00:00:00 | ⇒ | 2017-08-13 16:15:12 | 
| Closed_By | ⇒ | babgrib | 
Resolved!
with the help of Per Yngve Berg in the Forum
On the 3rd line I had error
JDatabasedriver-> LoadObjectlist ()
jroot / plugins / searches / easytimetable / easytimetable.php: 126
And the following line:
PlgSearchEasytimetable-> onContentSearch
So I switched off easytimetable then I got the "span class highlight" error (which I was too glad to have!) But I had seen in the "issues" how to solve this so it's solved  thanks !