Teams integration issue

{
  "stack": "SyntaxError: Unexpected token z in JSON at position 0\n    at JSON.parse (<anonymous>)\n    at MsTeamsProvider.<anonymous> (/usr/src/app/providers/ms-teams/build/main/lib/msTeams.provider.js:57:86)\n    at step (/usr/src/app/providers/ms-teams/build/main/lib/msTeams.provider.js:33:23)\n    at Object.next (/usr/src/app/providers/ms-teams/build/main/lib/msTeams.provider.js:14:53)\n    at /usr/src/app/providers/ms-teams/build/main/lib/msTeams.provider.js:8:71\n    at new Promise (<anonymous>)\n    at __awaiter (/usr/src/app/providers/ms-teams/build/main/lib/msTeams.provider.js:4:12)\n    at MsTeamsProvider.sendMessage (/usr/src/app/providers/ms-teams/build/main/lib/msTeams.provider.js:53:16)\n    at MSTeamsHandler.<anonymous> (/usr/src/app/apps/api/dist/main.js:15864:40)\n    at Generator.next (<anonymous>)\n    at /usr/src/app/apps/api/dist/main.js:15846:71\n    at new Promise (<anonymous>)\n    at __awaiter (/usr/src/app/apps/api/dist/main.js:15842:12)\n    at MSTeamsHandler.send (/usr/src/app/apps/api/dist/main.js:15860:16)\n    at SendMessageChat.<anonymous> (/usr/src/app/apps/api/dist/main.js:15750:50)\n    at Generator.next (<anonymous>)",
  "message": "Unexpected token z in JSON at position 0"
}