Optistruct - NLSTAT (Implicit) Analysis, errors and convergence issues


pl discuss if anyone received the following error messages (Ver13.0)?
*** ERROR # 157 ***
Error opening the scratch file ./1CAA-02G-001_CONROD_TEN-COMP_PL_5828_s40.rs~
Fortran error code = 9
This may be caused by not having the access right to open the file,
not enough memory left for the system routines, or some other
system setup related reasons.
This might be caused by real time protection from antivirus.
Disable real time protection at minimum for files with extension .rs~.
This error was detected in subroutine opseqscr.
*** ERROR # 158 ***
Error encountered when accessing the scratch file.
error from subroutine xdslrs
Solver error no. = -702
This may be caused by insufficient disk space or some other
system resource related limitations.
This might be caused by real time protection from antivirus.
Disable real time protection at minimum for files with extension .rs~.
This error was detected in subroutine bcsprefct.