apache close with error

[lagodoy]

hello, I have a problem in apache and I come to ask your help.

when I run a function to sign with cetificado degital an xml file, the apache and closes with the error:

Problem Event Name: BEX
Application Name: httpd.exe
Application Version: 2.4.3.0
Stamp Date / Time of Application: 502f70a3
Fault Module Name: StackHash_5861
Fault Module Version: 0.0.0.0
Stamp Date / Time Fault Module: 00000000
Exception Offset: +0 x00041318 PCH_EB_FROM_ntdll
Exception Code: c0000005
Exception Data: 00000008
OS Version: 6.2.9200.2.0.0.256.48
Locale ID: 1046
Additional Information 1: 5861
Additional Information 2: 5861822e1919d7c014bbb064c64908b2
Additional Information 3: dac6
Additional Information 4: dac6c2650fa14dd558bd9f448e23afd1

if anyone can help me how to be grateful