I'm getting below error while opening any page in Experience Editor-
Type 'Sitecore.XA.Foundation.Abstractions.Wrappers.WebEditCommandWrapper' in Assembly 'Sitecore.XA.Foundation.Abstractions, Version=4.8.1.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable.
I've checked the logs and found a below error-
ERROR Application error.
Exception: System.Runtime.Serialization.SerializationException Message: Type 'Sitecore.XA.Foundation.Abstractions.Wrappers.WebEditCommandWrapper' in Assembly 'Sitecore.XA.Foundation.Abstractions, Version=4.8.1.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable. Source: mscorlib