plugin has stopped working

Hi, the app was working great until very recently. Suddenly none of the strava shortcodes are working. Instead I’m seeing something like this:

WP Strava ERROR Array
(
    [headers] => Requests_Utility_CaseInsensitiveDictionary Object
        (
            [data:protected] => Array
                (
                    [date] => Sun, 06 Oct 2019 16:10:54 GMT
                    [content-type] => application/json; charset=utf-8
                    [cache-control] => no-cache
                    [via] => 1.1 linkerd
                    [x-download-options] => noopen
                    [status] => 401 Unauthorized
                    [x-request-id] => bbfcd5f6-6fe1-4030-b516-de199357e350
                    [referrer-policy] => strict-origin-when-cross-origin
                    [x-frame-options] => DENY
                    [x-permitted-cross-domain-policies] => none
                    [x-content-type-options] => nosniff
                    [vary] => Origin
                    [x-xss-protection] => 1; mode=block
                    [content-encoding] => gzip
                )

        )

    [body] => {"message":"Authorization Error","errors":[{"resource":"Application","field":"","code":"invalid"}]}
    [response] => Array
        (
            [code] => 401
            [message] => Unauthorized
        )

    [cookies] => Array
        (
        )

    [filename] => 
    [http_response] => WP_HTTP_Requests_Response Object
        (
            [response:protected] => Requests_Response Object
                (
                    [body] => {"message":"Authorization Error","errors":[{"resource":"Application","field":"","code":"invalid"}]}
                    [raw] => HTTP/1.1 401 Unauthorized
Date: Sun, 06 Oct 2019 16:10:54 GMT
Content-Type: application/json; charset=utf-8
Transfer-Encoding: chunked
Connection: close
Cache-Control: no-cache
Via: 1.1 linkerd
X-Download-Options: noopen
Status: 401 Unauthorized
X-Request-Id: bbfcd5f6-6fe1-4030-b516-de199357e350
Referrer-Policy: strict-origin-when-cross-origin
X-FRAME-OPTIONS: DENY
X-Permitted-Cross-Domain-Policies: none
X-Content-Type-Options: nosniff
Vary: Origin
X-XSS-Protection: 1; mode=block
content-encoding: gzip

{"message":"Authorization Error","errors":[{"resource":"Application","field":"","code":"invalid"}]}
                    [headers] => Requests_Response_Headers Object
                        (
                            [data:protected] => Array
                                (
                                    [date] => Array
                                        (
                                            [0] => Sun, 06 Oct 2019 16:10:54 GMT
                                        )

                                    [content-type] => Array
                                        (
                                            [0] => application/json; charset=utf-8
                                        )

                                    [cache-control] => Array
                                        (
                                            [0] => no-cache
                                        )

                                    [via] => Array
                                        (
                                            [0] => 1.1 linkerd
                                        )

                                    [x-download-options] => Array
                                        (
                                            [0] => noopen
                                        )

                                    [status] => Array
                                        (
                                            [0] => 401 Unauthorized
                                        )

                                    [x-request-id] => Array
                                        (
                                            [0] => bbfcd5f6-6fe1-4030-b516-de199357e350
                                        )

                                    [referrer-policy] => Array
                                        (
                                            [0] => strict-origin-when-cross-origin
                                        )

                                    [x-frame-options] => Array
                                        (
                                            [0] => DENY
                                        )

                                    [x-permitted-cross-domain-policies] => Array
                                        (
                                            [0] => none
                                        )

                                    [x-content-type-options] => Array
                                        (
                                            [0] => nosniff
                                        )

                                    [vary] => Array
                                        (
                                            [0] => Origin
                                        )

                                    [x-xss-protection] => Array
                                        (
                                            [0] => 1; mode=block
                                        )

                                    [content-encoding] => Array
                                        (
                                            [0] => gzip
                                        )

                                )

                        )

                    [status_code] => 401
                    [protocol_version] => 1.1
                    [success] => 
                    [redirects] => 0
                    [url] => https://www.strava.com/api/v3/activities/2523589168
                    [history] => Array
                        (
                        )

                    [cookies] => Requests_Cookie_Jar Object
                        (
                            [cookies:protected] => Array
                                (
                                )

                        )

                )

            [filename:protected] => 
            [data] => 
            [headers] => 
            [status] => 
        )

)

I am using WordPress 5.2.3 and WP Strava 2.0.
Nothing has changed on the site to cause the issue to happen. When I access the strava website with the same IDs I see everything fine, but it doesn't seem to work in WordPress now.

The page I need help with: [log in to see the link]