phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './pmasterphpbb/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 ('c62955f36092054c08ea42dcdcfa0aa1', -1, 1505994642, 1505994642, '36e11a9a', -4, 0, 0)

Line : 187
File : sessions.php