Error no. 486 in bemess

Hello,
I have an error message
“+++++ error no. 486 in program BFAT_BEME_ITER
No convergence in strain iteration in element/node(neg) -133 LC 4040
Should not happen. Please send the problem to the SOFiSTiK Support.
This check can be switched to a warning with CTRL WARN 486.”
while trying to run decompression check in bemess and csm and after few hours im out of ideas how to solve it. Thank you in advance if anyone can help.

-PROG CSM urs:6
HEAD DECO Design

DESI DECO $ decompression check
grpd 2

CTRL FILE ‘desi’ $ filename for the created input file
END
-apply “$(NAME)_desi.dat”