Umbraco Forms not exporting entries

Current Umbraco version 13.0.3, and forms version is 13.1.2.
The forms are licensed.
When trying to export the entries from the form I get the following error:
System.Drawing is not supported on this platform,

Full excepion:
angular.js:15697 Possibly unhandled rejection: {“data”:{“ExceptionMessage”:“System.Drawing is not supported on this platform.”,“ExceptionType”:“System.PlatformNotSupportedException, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e”,“StackTrace”:" at System.Drawing.Font..ctor(String familyName, Single emSize, FontStyle style)\r\n at OfficeOpenXml.ExcelRangeBase.AutoFitColumns(Double MinimumWidth, Double MaximumWidth)\r\n at OfficeOpenXml.ExcelRangeBase.AutoFitColumns(Double MinimumWidth)\r\n at OfficeOpenXml.ExcelRangeBase.AutoFitColumns()\r\n at Umbraco.Forms.Core.Providers.Export.BaseExportToExcel.ExportToFile(RecordExportFilter filter, String filepath)\r\n at Umbraco.Forms.Web.Editors.ExportController.PostGenerateExport(RecordExportFilter model)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.SyncObjectResultExecutor.Execute(ActionContext actionContext, IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object arguments)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeActionMethodAsync()\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeNextActionFilterAsync()\r\n— End of stack trace from previous location —\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()\r\n— End of stack trace from previous location —\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|26_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)“},“status”:500,“config”:{“method”:“POST”,“transformRequest”:[null],“transformResponse”:[null],“jsonpCallbackParam”:“callback”,“url”:“backoffice/UmbracoForms/Export/PostGenerateExport”,“data”:{“startIndex”:1,“length”:20,“form”:“1f73f7ff-ea2b-4d96-b1fa-ac158350305c”,“sortBy”:“created”,“sortOrder”:“descending”,“states”:[“Approved”,“Rejected”,“Submitted”],“localTimeOffset”:-120,“exportType”:“94ed105a-87b3-4e1f-97cb-9a320aee2745”},“headers”:{“Accept”:“application/json, text/plain, /”,“Content-Type”:“application/json;charset=utf-8”,“X-Requested-With”:“XMLHttpRequest”,“X-UMB-XSRF-TOKEN”:“CfDJ8ECW0mvY2nRPokg3OIBrHgyy6Vj_sp99qTDilM6CsHY_79xPanPaeK_IR2nFxOLNNzr-y1kL6QkwpqfwAZ-Yt04lrIw-LPZeLU-1-F-3X9MyU-siLAA2Px7_xkI3i3M_5V_tB_gykiUdPslvDSChOi6kbAOeTrq2sC-tXPxgXeR2YLonjVWpLknGhqn_9RcpVg”}},“statusText”:”",“xhrStatus”:“complete”}

What is the solution to this? the client just purchased the license and now cannot export any entries.
Please help.


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/114432-umbraco-forms-not-exporting-entries