RTCW bsp has wrong version number (46 should be 47)

Hello,
I'm sorry, but I haven't found any forum or tutorials, maybe someone knows how to help with rtcw scriptings

how to fix the error: "bsp has wrong version number (46 should be 47)" ? I edited "entities.a" and when I tried to load the map, I got an error

So you have a .map and you compiled it with q3map2 and then want to load it in RTCW?

Do you have a .bsp and hex-edited the version?

What are you doing or trying (please add context)

No, these are not my maps, I downloaded from gamebanana. I just wanted to add some fun music to them for a playful atmosphere.