A crash with this log happens when I start AM15 without saving Delta base in AM14.In the path where I did save the base the mission. But only under some Screenresolutions (In 1680x1050 and 1280x960 it crashes and in 1280x800 it does not [although that shouldn't be a natural for my screen])
Could you post your campaign saves (In a zip/rar. As long as its under 2MB it can be uploaded directly to the forum)? Original War was originally just designed for 640x480, 800x600 and 1024x768. Sometimes there are some rendering bugs exposed when certain resolutions and certain maps are used (Which if i can re-produce i should be able to fix).
I have created a bug report on the bug tracker
for this issue.
And another matter, more a curiosity. When I start AM13 while having replaced the Disk2 directory of the GOG-version with the one from my old german CD I start with 1 Character of my choice missing while 3 others appearing double.
The Disk2 OWP files contain both the sound for the mission dialogues and the maps themselves. If you replace them you will need to apply the latest patch or they will contain all the old mission bugs.