[opencms-dev] crontable corrupt. Scheduler is now disabled! OpenCMS hangs

[Salvador Santander Gutierrez]

My OpenCMS hangs everyday, when this happened, I see in the opencms log
messages like this:

...
[09.12.2003 23:40:06] <opencms_pool> [com.opencms.dbpool.CmsPool] oracleOci:
checking for outtimed connections
[09.12.2003 23:40:06] <opencms_pool> [com.opencms.dbpool.CmsPool] oracleOci:
closing one outtimed connection
[09.12.2003 23:40:06] <opencms_pool> [com.opencms.dbpool.CmsPool] oracleOci:
closing one outtimed connection
[09.12.2003 23:40:06] <opencms_pool> [com.opencms.dbpool.CmsPool] oracleOci:
closing one outtimed connection
[09.12.2003 23:40:06] <opencms_pool> [com.opencms.dbpool.CmsPool] oracleOci:
closing one outtimed connection
[09.12.2003 23:40:06] <opencms_pool> [com.opencms.dbpool.CmsPool] oracleOci:
closing one outtimed connection
[09.12.2003 23:40:06] <opencms_pool> [com.opencms.dbpool.CmsPool] oracleOci:
creating new connection. Current Amount is:5
[09.12.2003 23:40:06] <opencms_pool> [com.opencms.dbpool.CmsPool] oracleOci:
unable to create new connection for broken one
[09.12.2003 23:40:08] <opencms_pool> [com.opencms.dbpool.CmsPool]
oracleOcionline: checking for outtimed connections
[09.12.2003 23:40:08] <opencms_pool> [com.opencms.dbpool.CmsPool]
oracleOcionline: closing one outtimed connection
[09.12.2003 23:40:08] <opencms_pool> [com.opencms.dbpool.CmsPool]
oracleOcionline: closing one outtimed connection
[09.12.2003 23:40:08] <opencms_pool> [com.opencms.dbpool.CmsPool]
oracleOcionline: closing one outtimed connection
[09.12.2003 23:40:08] <opencms_pool> [com.opencms.dbpool.CmsPool]
oracleOcionline: creating new connection. Current Amount is:2
[09.12.2003 23:40:08] <opencms_pool> [com.opencms.dbpool.CmsPool]
oracleOcionline: unable to create new connection for broken one
[09.12.2003 23:40:10] <opencms_critical> [OpenCms] crontable corrupt.
Scheduler is now disabled!
[09.12.2003 23:41:10] <opencms_critical> [OpenCms] crontable corrupt.
Scheduler is now disabled!
[09.12.2003 23:42:10] <opencms_critical> [OpenCms] crontable corrupt.
Scheduler is now disabled!
[09.12.2003 23:43:10] <opencms_critical> [OpenCms] crontable corrupt.
Scheduler is now disabled!
[09.12.2003 23:44:10] <opencms_critical> [OpenCms] crontable corrupt.
Scheduler is now disabled!
[09.12.2003 23:45:10] <opencms_critical> [OpenCms] crontable corrupt.
Scheduler is now disabled!
[09.12.2003 23:46:10] <opencms_critical> [OpenCms] crontable corrupt.
Scheduler is now disabled!
[09.12.2003 23:47:10] <opencms_critical> [OpenCms] crontable corrupt.
Scheduler is now disabled!
[09.12.2003 23:48:10] <opencms_critical> [OpenCms] crontable corrupt.
Scheduler is now disabled!

and opencms hangs.

How can resolve this problem?
Thanks.