espt 21 muncul error saat akan simpan

Rekan2….di espt 21 muncul tulisan seperti ini saat sy tekan tombol simpan:
UNHANDLED EXCEPTION HAS OCCURED IN YOUR APPLICATION. IF YOU CLICK CONTINUE, THE APPLICATION WILL IGNORE THIS ERROR AND ATTEMPT TO CONTINUE. IF YOU CLICK QUIT, THE APPLICATION WILL CLOSE IMMEDIATELY……..
INVALID ARGUMENT=VAUE OF`-1' IS NOT VALID FOR START…PARAMETER NAME: START

Bagaimana cara mengatasinya ya….minta saran….tks

Rekan…..apa tdk ada yg bisa bantu ya