Game crashing during startup, lightly modded.

[Mink Wink]

I've been running a modded setup for a while with few problems, however it has suddenly started crashing during startup. I have not installed any new mods recently, so I have no idea what is causing this.

Currently, the only significant mods I can think of are OPT (Space plane parts) and Planetary Base Systems (self-explanatory)

Crash log: https://expirebox.com/download/3b99367bab0c5884ba7b5395edd0510c.html

Edited October 12, 2017 by Mink Wink
Clarifications

[steve_v]

3 hours ago, Mink Wink said:

I have not installed any new mods recently, so I have no idea what is causing this.

Steam. Steams idiotic auto-update. Oh, and Squad for updates that crash with once-working mods and no useful debug output.
Roll back to 1.3.0, or go through all your mods checking for compatibility with the latest KSP version.

[Mink Wink]

13 hours ago, steve_v said:

Steam. Steams idiotic auto-update. Oh, and Squad for updates that crash with once-working mods and no useful debug output.
Roll back to 1.3.0, or go through all your mods checking for compatibility with the latest KSP version.

That was It! Thank you very much.