I really would appreciate your help
new Ubuntu installation on ten yr old iMac computer. Wrote over iOS.

1). Once loaded I see four identical workspaces that are greyed out. so light in colour cannot read. Mouse click does activate things however cannot identify what I am opening. Cannot reduce to one workspace.

2). Upon booting up I get “failed to set MokListRT. Invalid parameter. “

I would reinstall and start over in a heartbeat. Big thank you for your help. New user. Excited to give this ago. Jay. London Ontario. 63 yrs old