Conflict with Login / Registration (WPLMS Theme)

I found conflicts with WPLMS theme. Someone please could help me to fix?

Regards

login.js?ver=1.5.5:1 POST https://www.website.it/m/wp-json/vibebp/v1/token/generate-token/?client_id=Ce93kLNBfvCIBhsC 500
M @ login.js?ver=1.5.5:1
ki @ react-dom.min.js?ver=16.13.1:176
ji @ react-dom.min.js?ver=16.13.1:13
mi @ react-dom.min.js?ver=16.13.1:13
lf @ react-dom.min.js?ver=16.13.1:13
wi @ react-dom.min.js?ver=16.13.1:187
Kd @ react-dom.min.js?ver=16.13.1:32
pc @ react-dom.min.js?ver=16.13.1:32
Wf @ react-dom.min.js?ver=16.13.1:34
(anonymous) @ react-dom.min.js?ver=16.13.1:236
uf @ react-dom.min.js?ver=16.13.1:15
Qd @ react-dom.min.js?ver=16.13.1:42
sc @ react-dom.min.js?ver=16.13.1:41
unstable_runWithPriority @ react.min.js?ver=16.13.1:25
Da @ react-dom.min.js?ver=16.13.1:60
mk.Events.current @ react-dom.min.js?ver=16.13.1:236
Ei @ react-dom.min.js?ver=16.13.1:41
VM2019:1 Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 0