phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './db_mtss3/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 ('28085f50835b65f36ab25f9b32e601b5', -1, 1503079449, 1503079449, '3651c0c0', 12, 0, 0)

Line : 187
File : sessions.php