how can i remove this error?
 

PlugIn Error: No valid bodies found for 2D Analysis in the following parts:
Line Body, Line Body, Line Body, Line Body, Line Body, Line Body

Suppress the line bodies in your geometry editor.

HOW CAN I REMOVE THIS ONE?

Error Object: #f

Error at host: zone-surface: invalid thread[2]

Error at Node 0: zone-surface: invalid thread[2]

Error at Node 1: zone-surface: invalid thread[2]

Error: zone-surface: invalid thread[2]