GET https://xxxx/umbraco/backoffice/umbracoapi/backofficeassets/GetSupportedLocales [HTTP/1.1 417 The required antiforgery header value "X-UMB-XSRF-TOKEN" is not present. 55ms] XHRGET https://xxxx/umbraco/backoffice/umbracoapi/updatecheck/GetCheck [HTTP/1.1 417 The required antiforgery header value "X-UMB-XSRF-TOKEN" is not present. 49ms] XHRGET https://xxxx/umbraco/backoffice/umbracoapi/tour/GetTours [HTTP/1.1 417 The required antiforgery header value "X-UMB-XSRF-TOKEN" is not present. 49ms] Possibly unhandled rejection: {"errorMsg":"Failed to retrieve update status","data":{"Type":null,"Title":null,"Status":417,"Detail":null,"Instance":null,"Extensions":{"traceId":"00-77fc79600ce289d4941d3917c76681dc-5b464d9b17ecb14e-00"}},"status":417,"xhrStatus":"complete"} umbraco-backoffice-js.js.v638736528350000000:147:202 Possibly unhandled rejection: {"errorMsg":"Failed to get tours","data":{"Type":null,"Title":null,"Status":417,"Detail":null,"Instance":null,"Extensions":{"traceId":"00-ddb3f49c70c1f4a27e8a7eed1022a78c-5fd1c642c2d76123-00"}},"status":417,"xhrStatus":"complete"} umbraco-backoffice-js.js.v638736528350000000:147:202 Possibly unhandled rejection: {"errorMsg":"Failed to get cultures","data":{"Type":null,"Title":null,"Status":417,"Detail":null,"Instance":null,"Extensions":{"traceId":"00-001cd56a98bb2544ce9bf775838cda47-0109191560c0fc9d-00"}},"status":417,"xhrStatus":"complete"} umbraco-backoffice-js.js.v638736528350000000:147:202 Possibly unhandled rejection: {"errorMsg":"Failed to retrieve data for sections","data":{"Type":null,"Title":null,"Status":417,"Detail":null,"Instance":null,"Extensions":{"traceId":"00-76787192761e996646650c48c1f3abff-d92a8c9f5b7b812e-00"}},"status":417,"xhrStatus":"complete"} When I log in, there are tokens related to cookies, but I still get an error like above. I tried everything but it doesn't work. How can I solve it?

Found these that might be of use: https://our.umbraco.com/forum/using-umbraco-and-getting-started/91490-417-missing-token-in-back-office-not-resolved-by-f5 https://our.umbraco.com/forum/umbraco-9/107593-required-antiforgery-header-value-x-umb-xsrf-token-not-present-umbraco-backoffice https://github.com/umbraco/Umbraco-CMS/issues/12060