after writing all code for registration... wont able to register

2020-09-14 04:35:19.598 12164-15206/com.example.buyonlineanything I/AdrenoGLES: Build Config                     : S P 8.0.11 AArch64
2020-09-14 04:35:19.600 12164-15206/com.example.buyonlineanything I/AdrenoGLES: PFP: 0x016ee187, ME: 0x00000000
2020-09-14 04:35:19.601 12164-15206/com.example.buyonlineanything W/AdrenoUtils: <ReadGpuID_from_sysfs:194>: Failed to open /sys/class/kgsl/kgsl-3d0/gpu_model
2020-09-14 04:35:19.601 12164-15206/com.example.buyonlineanything W/AdrenoUtils: <ReadGpuID:218>: Failed to read chip ID from gpu_model. Fallback to use the GSL path
2020-09-14 04:35:19.617 12164-15206/com.example.buyonlineanything W/Gralloc3: mapper 3.x is not supported
2020-09-14 04:35:19.627 12164-15209/com.example.buyonlineanything I/FA: Tag Manager is not found and thus will not be used
2020-09-14 04:35:19.660 12164-15209/com.example.buyonlineanything D/FA: Connected to remote service