If we click at attribute icon or rendersetting... we have the follow error
An exception occurred while executing 'SELECT id FROM tl_metamodel_attribute WHERE (pid = ?) AND () ORDER BY sorting ASC' with params ["1"]: SQLSTATE[42000]: Syntax error or access violation: 1064 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 ') ORDER BY sorting ASC' at line 1
see https://github.com/doctrine/dbal/issues/4282
If we click at attribute icon or rendersetting... we have the follow error
An exception occurred while executing 'SELECT id FROM tl_metamodel_attribute WHERE (pid = ?) AND () ORDER BY sorting ASC' with params ["1"]: SQLSTATE[42000]: Syntax error or access violation: 1064 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 ') ORDER BY sorting ASC' at line 1
see https://community.contao.org/de/showthread.php?78918-Nach-MM-Installation-Attibute-nicht-aufrufbar-SQL-Syntax-Error
Workaround: set in your composer.json
"doctrine/dbal": "~2.10.4"