I'm getting a message stating AJEBProjectCivil3DStyles when using the roads tab and clicking on the active drawing, vertical grading or network strings button.
the AJEBProjectCivil3DStyles issue usually arises if the project/drawing has been loaded into CSD V25 or higher and then opened in an older version of the software.
Please check the version of CSD and if necessary update
The latest Civil Site Design downloads are found here: https://download.civilsurveyapplications.com/civil-site-design/