It appears the program isn’t detecting ImageMagick; here are the notifications:
No ImageMagick detected at /tmp/.mount_pixel_fpdhiu/usr/bin/assets/imagemagick/linux/imagemagick.appimage, please make sure the installation is complete and ImageMagick path is set correctly in the preference.
No webp detected at /tmp/.mount_pixel_fpdhiu/usr/bin/assets/webp/linux/webpmux, please make sure the installation is complete and webp path is set correctly in the preference.
No gifski detected at /tmp/.mount_pixel_fpdhiu/usr/bin/assets/gifski/linux/gifski, please make sure the installation is complete and gifski path is set correctly in the preference.