Phorum Database Error

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Error:

Table './freedoma_phorum/phorum_messages' is marked as crashed and last (automatic?) repair failed (144): SELECT author, datestamp, email, message_id, forum_id, meta, moderator_post, modifystamp, parent_id, msgid, sort, moved, status, subject, thread, thread_count, user_id, viewcount, threadviewcount, closed, ip, recent_message_id, recent_user_id, recent_author FROM phorum_messages USE INDEX (list_page_float) WHERE modifystamp > 0 AND forum_id = 1 AND status = 2 AND parent_id = 0 AND sort > 1 ORDER BY modifystamp DESC LIMIT 90, 30

Backtrace:

Function phorum_database_error called at
{path to Phorum}/include/db/mysql/mysqli.php:212
----
Function phorum_db_interact called at
{path to Phorum}/include/db/mysql.php:579
----
Function phorum_db_get_thread_list called at
{path to Phorum}/list.php:193
----