Phorum Database Error

Sorry, a Phorum database error occurred.
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Error:

Table './usr_web282_2/phorum_messages' is marked as crashed and last (automatic?) repair failed (144): SELECT * FROM phorum_messages WHERE forum_id = 2 AND thread = 17873 AND status =2 ORDER BY message_id LIMIT 0,30

Backtrace:

Function phorum_database_error called at
{path to Phorum}/include/db/mysql/mysqli.php:211
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Function phorum_db_interact called at
{path to Phorum}/include/db/mysql.php:1433
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Function phorum_db_get_messages called at
{path to Phorum}/read.php:356
----