Class 'JWT' not found when creating a manual token

[zeusent]

When I try to create a manual token I get the following error:

Whoops, looks like something went wrong.

FatalErrorException in Token.php line 42:
Class 'JWT' not found

1. in Token.php line 42
2. at FatalErrorException->__construct() in HandleExceptions.php line 133
3. at HandleExceptions->fatalExceptionFromError() in HandleExceptions.php line 118
4. at HandleExceptions->handleShutdown() in HandleExceptions.php line 0
5. at Token->create() in routes.php line 29
6. at RouteServiceProvider->{closure:/usr/share/nginx/html/app/Http/routes.php:16-31}() in Route.php line 158
7. at call_user_func_array:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Routing/Route.php:158}() in Route.php line 158
8. at Route->runCallable() in Route.php line 137
9. at Route->run() in Router.php line 724
10. at Router->Illuminate\Routing\{closure}() in Pipeline.php line 52
11. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php:52}() in Pipeline.php line 52
12. at Pipeline->Illuminate\Routing\{closure}() in VerifyCsrfToken.php line 64
13. at VerifyCsrfToken->handle() in Pipeline.php line 124
14. at call_user_func_array:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:124}() in Pipeline.php line 124
15. at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 32
16. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php:32}() in Pipeline.php line 32
17. at Pipeline->Illuminate\Routing\{closure}() in ShareErrorsFromSession.php line 49
18. at ShareErrorsFromSession->handle() in Pipeline.php line 124
19. at call_user_func_array:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:124}() in Pipeline.php line 124
20. at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 32
21. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php:32}() in Pipeline.php line 32
22. at Pipeline->Illuminate\Routing\{closure}() in StartSession.php line 62
23. at StartSession->handle() in Pipeline.php line 124
24. at call_user_func_array:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:124}() in Pipeline.php line 124
25. at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 32
26. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php:32}() in Pipeline.php line 32
27. at Pipeline->Illuminate\Routing\{closure}() in AddQueuedCookiesToResponse.php line 37
28. at AddQueuedCookiesToResponse->handle() in Pipeline.php line 124
29. at call_user_func_array:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:124}() in Pipeline.php line 124
30. at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 32
31. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php:32}() in Pipeline.php line 32
32. at Pipeline->Illuminate\Routing\{closure}() in EncryptCookies.php line 59
33. at EncryptCookies->handle() in Pipeline.php line 124
34. at call_user_func_array:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:124}() in Pipeline.php line 124
35. at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 32
36. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php:32}() in Pipeline.php line 32
37. at Pipeline->Illuminate\Routing\{closure}() in Pipeline.php line 103
38. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:103}() in Pipeline.php line 103
39. at Pipeline->then() in Router.php line 726
40. at Router->runRouteWithinStack() in Router.php line 699
41. at Router->dispatchToRoute() in Router.php line 675
42. at Router->dispatch() in Kernel.php line 246
43. at Kernel->Illuminate\Foundation\Http\{closure}() in Pipeline.php line 52
44. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php:52}() in Pipeline.php line 52
45. at Pipeline->Illuminate\Routing\{closure}() in CheckForMaintenanceMode.php line 44
46. at CheckForMaintenanceMode->handle() in Pipeline.php line 124
47. at call_user_func_array:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:124}() in Pipeline.php line 124
48. at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 32
49. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php:32}() in Pipeline.php line 32
50. at Pipeline->Illuminate\Routing\{closure}() in Pipeline.php line 103
51. at call_user_func:{/usr/share/nginx/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:103}() in Pipeline.php line 103
52. at Pipeline->then() in Kernel.php line 132
53. at Kernel->sendRequestThroughRouter() in Kernel.php line 99
54. at Kernel->handle() in index.php line 54
55. at {main}() in index.php line 0

Here's my code for it:

$FirebaseTokenGenerator = new J42\LaravelFirebase\Token('H283KdeEyw8xH0O9wgKCuxnlfLCTZCBKfOKArBjY');
$Firebase = App::make('firebase');
$token = $FirebaseTokenGenerator->create([], []);
$Firebase->setToken($token);

[boyanov]

To solve similar issue I had to modify the file Token.php line 42 like this:
return \Firebase\JWT\JWT::encode($claims, $this->secret, 'HS256');