Express doc. termination while posting GR

Hello all,

While posting GR the error is Express doc. termination, seems this is number range issue so i checked in MKPF for the last number that wa 379,

so i changed the number to XXXXXXX379 in OMBT, but again the same issue while posting GR and the number range in OMBT is increased by 10,

can somebody help me out.

Thank You