Jakob,
Views can only be created if the underlying object (the table(s)) exist hence my asking you to check the existence of table "YIT_SAP".
From your log it looks like the table doesn't exist.
>> Log Excerpt <<
[ASE Error SQL208:42000][SAP][ASE ODBC Driver][Adaptive Server Enterprise]YIT_SAP not found. Specify owner.objectname or use sp_help to check whether the object exists (sp_help may produce lots of output).
>> Log Excerpt <<
Please execute the SQL mentioned above to cross check (connecting as owner).
If, as the log suggests, the table wasn't created, then you need to check your other logs for this table to see why it wasn't created.
KR,
Amerjit