Hello Karolina,
Opening caveat .... I'm not a Sybase person.
In your error you can see that there is an issue setting the identity property for column CRR_ID on table "/1CRR/LT00001387" which is the logging table related to table /ASU/SSMCONTENTP.
Now what you need to determine is why the CRR_ID (incremental number) cannot be updated/set for "/1CRR/LT00001387".
1. As a cross check, ask your DBA to check the columns of table "/1CRR/LT00001386" and see what value is assigned to CRR_ID for this table. Logically it would be 1386.
2. Ask you DBA to check the DB logs to see if anything is being logged during the failed creation of "/1CRR/LT00001387" eg: space issues, 1387 is in use etc... In the SQL cache I would imagine you could see the SQL statement that was executed.
3. Even though I doubt it has anything to do with your problem, please check table /ASU/SSMCONTENTP with tx: SE11 and reactivate it if necessary.
4. Try repeating the phase with the INIT option (nothing to lose by trying).
KR,
Amerjit