Internal Spool Error

Hi All,

I scheduled 2 chains 1)FI 2)SD, FI chain is running fine by taking delta every day.

when it comes to SD the chain is failing from last 2 days i checked yesterday and found back ground process unavailability and in st22 (Internal spool error) as a solution i asked basis team to increase spool and it worked fine.

Today again chain is failed and saying "can not start back ground process" when i click on details button it is taking me to ABAP coding part...

can any one help me...

thank you

vijay