array to string conversion

Уже 2 часа, наблюдаю такую ошибку: ErrorException: [E_NOTICE] Array to string conversion src/XF/Db/Mysqli/Statement.php:71 #0 [internal function]: XF::handlePhpError(8, '[E_NOTICE] Arra...', '/home/user/web...', 71, Array) #1 src/XF/Db/Mysqli/Statement.php(71): mysqli_stmt->execute() #2...