The device cannot connect to FRPS

How to solve this problem?

1. Make sure the firmware version of the device supports the use of FRPS. If not, please contact support engineers to obtain the corresponding version.
2. Make sure the connected FRPS address is:
   https://rps.flyingvoice.net/config/$(MA)?mac=$(MA)&serial=$(SN)&hwver=$(HWVER)&swver=$(SWVER)&product=$(PN)&linereg=$ (LINEREG)&account=$(SIPUSERS)