MSPM0L1306: I am getting error while Flashing code like Device gone into Low power mode

Tool/software:

Hello,

I am using custom board of MSPM01306. And flashing it using LP-MSPM0G3507 2 wire. It was getting flashed and working but now getting error like

Error connecting to the target:

DAP Connection Error. This could be caused by the device having gone to low power mode.
Try forcing an external reset.If the error persists, try forcing BSL, a Mass erase or a Factory Reset. Check device FAQs for more information.

My connections are From LP-MSPM0G3507 to my Custom board MSPM01306 as below,

SWDIO --> SWDIO

SWCLK --> SWCLK

NRST  --> NRST

3V3 --> 3V3

GND --> GND

Please let me know how to solve it

Regards,

Nitin