Do you have SH4 1.5?
You can use only a supermod. Or Berbster combination, or FOTRSU, or TMO, or RFB. You canīt mix supermods. When install a supermod, itīs a pity, but you need to uninstall all SH4 and reinstall it. JSGME isnīt perfect deactivating great mods. Some file could remain and the mix with other supermod causes problems. If you change from Berbsterīs to FOTRS or FOTRSU, you should to uninstall all and reinstall SH4 with your new supermod.
Also, donīt forget to use 4Gb patch or the utility for 4GB included in Berbsterīs. Probably, Berbsterīs works in a machine with only 2 GB RAM , but FOTRS or FOTRSU need more memory and you should to patch SH4.exe for allowing more memory of your system. I suppose you have more than 2 GB RAM.
Welcome aboard and best regards.
Fiztcarraldo