Error on SMTP email sending

Good day all

Please assist me as I new to UIPath and trying to send an email using SMTP . I get the error bellow when i run it

Please see log extract and screenshot bellow

13:55:58:961 => [ERROR] [UiPath.Workflow.Logging.StudioTraceListener] [25] System.BadImageFormatException: Format of the executable (.exe) or library (.dll) is invalid.
at Mono.Cecil.PE.ImageReader.ReadOptionalHeaders(UInt16& subsystem, UInt16& dll_characteristics)
at Mono.Cecil.PE.ImageReader.ReadImage()
at Mono.Cecil.PE.ImageReader.ReadImageFrom(Stream stream)
at Mono.Cecil.ModuleDefinition.ReadModule(Stream stream, ReaderParameters parameters)
at Mono.Cecil.ModuleDefinition.ReadModule(String fileName, ReaderParameters parameters)
at UiPath.Project.ActivityPackageManager.<>c__DisplayClass29_0.b__1(String assemblyFile)

what is the attachment of the mail ?

I don’t have anattachment

try reinstalling the activity