npm run dev command failed after installing app.

[Viplove_W]

Once I installed app with shopify store over shopify partners account it works. But when I quit from terminal and try to run again using npm run dev it throw an Error. 

Error :

Looks like this is the first time you're running dev for this project.
Configure your preferences by answering a few questions.

The Partners GraphQL API responded unsuccessfully with the HTTP status 200 and errors: │
│ │
│ [ │
│ { │
│ "message": "Unexpected system error", │
│ "extensions": { │
│ "code": "500" │
│ } │
│ } │
│ ] │
│ │
│ │
│ To investigate the issue, examine this stack trace: │
│ at (graphql-request/src/index.ts:410) │
│ throw new ClientError( │
│ at step (graphql-request/dist/index.js:63) │
│ op = body.call(thisArg, _); │
│ at next (graphql-request/dist/index.js:44) │
│ function verb(n) { return function (v) { return step([n, v]); }; } │
│ at fulfilled (graphql-request/dist/index.js:35) │
│ function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } │
│ at processTicksAndRejections (node:internal/process/task_queues:95)

Help me to get rid of this. Thanks in advance.