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 ('46c89af58632f11edd5d24308bbd2c37', -1, 1513311800, 1513311800, '36524f6d', -1, 0, 0)

Line : 187
File : sessions.php