Plate Solver fails to solve - by: kookoo_gr

I am trying to use the polar alignment tools at Ekos with a simulator setup. I have a CCD simulator along with a telescope simulator profile. My setup is an RC8'' with an Atik 383l+ that gives me an FOV of 38.43' x 28.62' When i do the polar algnment procedure after i take the image the solver fails to solve the image whether i use the online or offline option. Truth be told that the first time Kstars solved the firts image and i rotated 30d west but after that i had no luck with solving any new images. I include some photos of the configuration setup in case i have made something wrong.

Also i noticed that a new version of Kstars is out i tried to update the software with the software updater but i get an error that i need free space at the /boot directory how can i do that?