I'm seeing similar issues. Clicking online from the main results in immediate crash from both android and PC.
Edit: In case it helps any game developers reading this... I copied over a snippet of what I see in the Windows Error Reporting file generated when the app crashes. It alludes to an exception on invalid memory access (c0000005). Does clicking online make some kind of online service call that is returning an unexpected response - and causing app exceptions? I don't think there have been any client updates recently...
Sig[0].Name=Application Name
Sig[0].Value=ThroughTheAges_steam.exe
Sig[1].Name=Application Version
Sig[1].Value=0.0.0.0
Sig[2].Name=Application Timestamp
Sig[2].Value=647e1ef5
Sig[3].Name=Fault Module Name
Sig[3].Value=ThroughTheAges_steam.exe
Sig[4].Name=Fault Module Version
Sig[4].Value=0.0.0.0
Sig[5].Name=Fault Module Timestamp
Sig[5].Value=647e1ef5
Sig[6].Name=Exception Code
Sig[6].Value=c0000005
Sig[7].Name=Exception Offset
Sig[7].Value=0028eb82