OC: Failed to load configuration

I previously had my Latitude E5540 up and running with Big Sur however hardware acceleration wasn't working and I somehow messed up the configuration file while trying to fix it. Is there any way to access openshell if I cannot get to the boot selection? Cpu: i7-4600U iGpu: HD4600 Gpu: Geforce Gt720M(disabled) Ram: 16GB DDR3

submitted by /u/Ok_Olive_2176
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