There are many different things that could be wrong and without an error message we can’t really give you a specific solution but here are several things I’d try.
Verify permissions – does your account still have same permissions
Verify database is not corrupted – try using
DBCC CHECKDB[
^] for this
Try restoring database from backup if possible and see if everything is ok there.
Update:
I doubt this is the case in your problem but i had many complains lately with similar issues and after extensive investigation we realized SSD hard drives can be the cause. Just wanted to share this for the future readers
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