Maintenance Job Failing
One thing to note is that xp_sqlmaint is scheduled to removed in the future and is not the recommended method for running the maintenance plans. (Though it is still supported at this time.)

For SQL Server maintenance I would recommend downloading the Ola Hallengren solution at https://ola.hallengren.com/.  This is a freely provided product for managing the integrity checks as well as, if you wish, to automate your database backups. And Ola is quick to respond with personal help.

These are highly respected scripts, which I have been using for several years.

You seem to have a corruption problem if the -CkDBRepair cannot finish the check. If that is the case, then you will need to be careful in how you fix the problem so as to avoid as much loss as possible. So please carefully read:

DBCC CHECKDB (Transact-SQL)

Be sure to read the warnings on DBCC CHECKDB and the impact of allowing data loss when resolving the problem.