Error in running gamit

this error happend when i use sh_gamit in terminal. i have checked svnav.dat's file but this error still happend.
the fatal error seems like :

Generating fitted g-file for: 2017 030
STATUS :180319:2036:41.0 NGSTOT/orbits/ngstot: Started NGSTOT ver. 10.01 2015/11/3 13:40:00 (Linux) Library ver. 11.18 of 2015/11/10 19:20 (Linux)
STATUS :180319:2036:41.0 NGSTOT/orbits/ngstot: Converting CE to CM using otlcmc.dat offsets for FES2004
FATAL :180319:2036:41.0 NGSTOT/lib/svnav_read: Unknown version of file (Name svnav.dat)
STOP FATAL Error: Stop from report_stat
grep: gigs19341.sp3: No such file or directory
FATAL :180319:2036:41.0 ARC/arc: GAMIT.fatal exists: ARC not executed
STOP FATAL Error: Stop from report_stat
GAMIT.fatal exists, stop in sh_sp3fit
mv: cannot stat 'gigsf7.030': No such file or directory
sh_sp3fit failed to generate a g-file, stop


to fix this fatal error, what should i do?