MySQL Incorrect information in file

[netfreehost]

On of my database stooped working.

mysql> check table invoice;
+-------------------------------+-------+----------+----------------------------------------------------------------------+
| Table | Op | Msg_type | Msg_text |
+-------------------------------+-------+----------+----------------------------------------------------------------------+
| billing_db.invoice | check | Error | Incorrect information in file: './billing_db/invoice.frm' |
| billing_db.invoice | check | error | Corrupt |
+-------------------------------+-------+----------+----------------------------------------------------------------------+
2 rows in set (0.00 sec)

mysql> repair table invoice;
+-------------------------------+--------+----------+----------------------------------------------------------------------+
| Table | Op | Msg_type | Msg_text |
+-------------------------------+--------+----------+----------------------------------------------------------------------+
| billing_db.invoice | repair | Error | Incorrect information in file: './billing_db/invoice.frm' |
| billing_db.invoice | repair | error | Corrupt |
+-------------------------------+--------+----------+----------------------------------------------------------------------+
2 rows in set (0.01 sec)

mysql>

It seems some problem with innodb.

My variables are

mysql> show variables like '%innodb%';
+---------------------------------+------------------------+
| Variable_name | Value |
+---------------------------------+------------------------+
| have_innodb | DISABLED |
| innodb_additional_mem_pool_size | 1048576 |
| innodb_autoextend_increment | 8 |
| innodb_buffer_pool_awe_mem_mb | 0 |
| innodb_buffer_pool_size | 4294967296 |
| innodb_checksums | ON |
| innodb_commit_concurrency | 0 |
| innodb_concurrency_tickets | 500 |
| innodb_data_file_path | ibdata1:10M:autoextend |
| innodb_data_home_dir | |
| innodb_doublewrite | ON |
| innodb_fast_shutdown | 1 |
| innodb_file_io_threads | 4 |
| innodb_file_per_table | OFF |
| innodb_flush_log_at_trx_commit | 2 |
| innodb_flush_method | |
| innodb_force_recovery | 0 |
| innodb_lock_wait_timeout | 50 |
| innodb_locks_unsafe_for_binlog | OFF |
| innodb_log_arch_dir | |
| innodb_log_archive | OFF |
| innodb_log_buffer_size | 1048576 |
| innodb_log_file_size | 268435456 |
| innodb_log_files_in_group | 2 |
| innodb_log_group_home_dir | ./ |
| innodb_max_dirty_pages_pct | 90 |
| innodb_max_purge_lag | 0 |
| innodb_mirrored_log_groups | 1 |
| innodb_open_files | 300 |
| innodb_rollback_on_timeout | OFF |
| innodb_support_xa | ON |
| innodb_sync_spin_loops | 20 |
| innodb_table_locks | ON |
| innodb_thread_concurrency | 8 |
| innodb_thread_sleep_delay | 10000 |
+---------------------------------+------------------------+
35 rows in set (0.00 sec)

mysql>

Anyone know how to fix the problem ?

Thanks,

Yujin