ifweb60.exe errors

 i get on the server screen errors like 

Application popup: Microsoft Visual C++ Runtime Library : Assertion failed!

 

Program: d:\oracle\prodora\8.0.6\bin\ifweb60.exe

File: C:\forms\608\src\ip\ipf\ipfgba.c

Line: 303

Expression: hifmc && !((((hifmc)->ifmc_flg)&((((ub2)0x2000)))) != 0)

 

or

 

Application popup: Microsoft Visual C++ Runtime Library : Assertion failed!

Program: d:\oracle\prodora\8.0.6\bin\ifweb60.exe

File: C:\forms\608\src\if\iff\ifrlf.c

Line: 893

Expression: 0

 

or

Application popup: Microsoft Visual C++ Runtime Library : Assertion failed!

Program: d:\oracle\prodora\8.0.6\bin\ifweb60.exe

File: C:\forms\608\src\ix\ixfs.c

Line: 75

Expression: window != (ixobj *)0

 

Any idea how to fix this issue