phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './vrforum/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('fa17362664e4f8009fc0c36708b3879a', -1, 1511427497, 1511427497, '36c6026e', 5, 0, 0)

Line : 187
File : sessions.php