Error: is_culture_involved_in_struggle trigger [ target culture was null ]

[psvoid]

Information​

I have verifed my game files (Steam only)​

Yes

I have disabled all mods​

Yes

I am running the latest game update​

Yes

Required​

Summary​

Error: is_culture_involved_in_struggle trigger [ target culture was null ]

Description​

[jomini_script_system.cpp:276]: Script system error!
Error: is_culture_involved_in_struggle trigger [ target culture was null ]
Script location: file: common/on_action/title_on_actions.txt line: 252

Play Persian Struggle

Steps to reproduce​

Runtime crash

Game Version​

1.11.1

Platform​

Linux

Additional Information​

Affected Feature​

• Crashes

Save Game​

Other Attachments​