PKPM程序运行时终止的问题

请问下面这个用SATWE计算时的问题是怎么回事呀？ 问题出在哪里呢？ 有点多。。。 麻烦各位啦。

forrtl:severe(29):file not found,unit 712,file D:\PKPM\\DAT1a.pm

Image PC Routine Line Source
WINSTART-P .exe 00421662 Unknown Unknown Unknown
WINSTART-P .exe 0042163 Unknown Unknown Unknown
WINSTART -P .exe 004205D4 Unknown Unknown Unknown
WINSTART -P .exe 0042089C Unknown Unknown Unknown
WINSTART -P .exe 00422F95 Unknown Unknown Unknown
WINSTART -P .exe 00451110 Unknown Unknown Unknown
WINSTART-P .exe 0044D5C0 Unknown Unknown Unknown
WINSTART -P .exe 0048D7E2 Unknown Unknown Unknown
WINSTART-P .exe 00447C6D Unknown Unknown Unknown
WINSTART -P .exe 0044780A Unknown Unknown Unknown
WINSTART-P .exe 00405BD3 Unknown Unknown Unknown
WINSTART -P .exe 0040AFEE Unknown Unknown Unknown
kernel32.dll 7C817077 Unknown Unknown Unknown