Arduino MKR 1300 modem.joinOTAA not joining TTN

Hi all, I am currently using an Arduino MKR 1300 connected to my own gateway. I have been trying to use TheThingsNetwork.h and MKRWAN.h to connect to TTN. However, I keep getting such responses on the TTN console. Any help would be greatly appreciated!

I also do not see any issue in the metadata displayed in TTN.

Could it be that there are newer stacks which have made the MKRWAN.h incompatible?

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