post man gives 500- severer error for authenticating purpose when i changed Secret in AppSettings of appSetting.json file

[tutul2010]

Hi,

I changed Secret as below in AppSettings of appSetting.json file

"AppSettings": {
    "Secret": "5BFr#$14"
  },

then i was getting 500- internal severer error for authenticating purpose by using postman.
Any one faceed this same issue and any solutions for above?

Many Thanks,