MySQL error token mismatch when you connect to a database in PHPMyadmin.
if the browser cookies don’t match the error:
token mismatch
comes up
Reasons that generate this error:
1. the /tmp directory is full. Run the command
df -h
on a server terminal, empty the directory contents when you find Use: 100% and clear the /tmp folder too.
2. Incorrect permissions: he permissions of the folder /tmp must be set to 755. Run
chmod 755 /home/username/tmp
3. php.ini file issue: uncomment
session.save_path
and set the value to /tmp.
ession.save_path = "/tmp"
restart apache:
service httpd restart
4. Outdated browser cache: clear the browser cache and cookies.