GPS uputronics not working on 64bit

[Festerstoybox]

i had build a pi on 32bit running just fine with the Uputronics GPS hat i got (everything worked perfect). since starting again on the 64 bit updated version it doesn't seem to see the GPS at all. I have installed everything i need as per the instructions on

https://cdn.shopify.com/s/files/1/0176/3274/files/Uputronics_Raspberry_Pi_GPS_RTC_Board_Datasheet_cf75a05b-d348-4145-ad51-d525bc7e2ae7.pdf?v=1594716235
and it seems to be working in that respect, i would really appreciate a little help to get this working again (looking to get it out in the field on next camping trip).