error in Mortal Kombat 9 and 11 on PC is commonly triggered by corrupted AppData files or peripheral conflicts, requiring users to delete specific configuration folders or adjust RGB settings. Additional fixes include verifying Steam game files and, for MK9, modifying GPU memory settings in the dxdiag.txt file. Detailed troubleshooting steps can be found at WB Games Support
The error is -null- because the config file is pointing to a wrong path. -null- core.errors.open failed mortal kombat
Click to scan for and repair any corrupted assets. error in Mortal Kombat 9 and 11 on
In plain English, the error means: