How to fix : SolidCP Websites listing xml error?

Recently, released windows update 14-07-2020 (dd-mm-yyyy), may cause an issue with the Website section in SolidCP. It will give you below error.

Actually, it is caused by the update this update.

Until there is any solution from SolidCP, we can apply the quick fix described below.

1. Login to IIS.
   
   
2. Select on SolidCP Portal and click on the explore button.
   
   
3. Take a backup of the SolidCP Portal web.config file. You can just copy and paste it at same location as well.
   
   
4. Open the SolidCP Portal web.config file in notepad++.
   
   
5. Add the below code after </sectionGroup> in the web.config file.
   
   

   <sectionGroup name="system.data.dataset.serialization" type="System.Data.SerializationSettingsSectionGroup, System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
   <section name="allowedTypes" type="System.Data.AllowedTypesSectionHandler, System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
   </sectionGroup>
   

6. Add the below code after </configSections> in the web.config file.
   
   

   <system.data.dataset.serialization>
   <allowedTypes>
   <add type="SolidCP.Providers.ResultObjects.HeliconApeStatus, SolidCP.Providers.Base, Version=1.4.6.0, Culture=neutral, PublicKeyToken=da8782a6fc4d0081" />
   </allowedTypes>
   </system.data.dataset.serialization>
   

7. Make sure you change the original SolidCP version which is in your backup file change it at Version=1.4.6.0 and save the file.

        Now, your SolidCP should work fine without any issue.