Hi, most likely I missed something. I tried putting old dll's I had in the ~/bin/ before, workflows, old captcha, nothing seems to work. 

It was working fine a day or two ago, as I was editing the reCaptcha form, I have copied the updated from UmbracoContour_3.0.12_update, with no luck. I cannot find where this reference is from, any ideas?

Contour = 3.0.12

Umbraco = 4.11.9

Server Error in '/' Application.

---

No provider with id 'b780c93b-b5b7-4b21-8454-23ebbe634123' found

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: Umbraco.Forms.Core.Common.ProviderException: No provider with id 'b780c93b-b5b7-4b21-8454-23ebbe634123' found

Source Error: 

Stack Trace: 

[ProviderException: No provider with id 'b780c93b-b5b7-4b21-8454-23ebbe634123' found]
   Umbraco.Forms.Core.Common.ProviderCollection`1.GetProvider(Guid id) +213
   Umbraco.Forms.Core.Field.CreateFromDataReader(IRecordsReader reader) +1061
   Umbraco.Forms.Data.Storage.FieldStorage.GetAllFields(FieldSet fieldset) +272
   Umbraco.Forms.Data.Storage.FieldSetStorage.GetAllFieldSets(Page page) +288
   Umbraco.Forms.Data.Storage.PageStorage.GetAllPages(Form form) +290
   Umbraco.Forms.Data.Storage..() +45
   Umbraco.Core.CacheHelper.GetCacheItem(String cacheKey, CacheItemPriority priority, CacheItemRemovedCallback refreshAction, CacheDependency cacheDependency, TimeSpan timeout, Func`1 getCacheItem, Object syncLock) +171
   umbraco.cms.businesslogic.cache.Cache.GetCacheItem(String cacheKey, Object syncLock, CacheItemPriority priority, CacheItemRemovedCallback refreshAction, CacheDependency cacheDependency, TimeSpan timeout, GetCacheItemDelegate`1 getCacheItem) +352
   Umbraco.Forms.Data.Storage.FormStorage.GetAllForms(Boolean archived) +475
   Umbraco.Forms.UI.Dashboard.FormsDashboard.Page_Load(Object sender, EventArgs e) +1521
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
   System.Web.UI.Control.LoadRecursive() +116
   System.Web.UI.Control.LoadRecursive() +206
   System.Web.UI.Control.LoadRecursive() +206
   System.Web.UI.Control.LoadRecursive() +206
   System.Web.UI.Control.LoadRecursive() +206
   System.Web.UI.Control.LoadRecursive() +206
   System.Web.UI.Control.LoadRecursive() +206
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2809