Error in importing PSD file

Are you using File > Import or the Media Manager?  Although, either approach should work as expected.

8-bpc, 16-bpc, and 32-bpc RGB Color Mode Photoshop files are supported with Premiere Pro on an Apple M1.  So, it's probably worth taking a closer look at the PSD files.

Assuming you're not planning to import the PSD layers, you could try opening a few of the PSDs in Photoshop and using File > Export > Quick Export as PNG.  Then try using File > Import to bring those in.

Since Premiere Pro doesn't print to paper, (that is, there's no File > Print), the DPI setting of the Photoshop document is ignored.  Premiere Pro just looks at the width and the height as measured in pixels.  So, 1920-by-1080 at 150 dpi is the same as 1920-by-1080 at 72 dpi which is the same as 1920-by-1080 at 300 dpi.  The difference between what I just listed only comes into play when we choose File > Print in an application like Photoshop that prints.

Try resaving the file under a different name and then import into Premiere Pro.

If that soesn't work, try saving as a TIFF and then import into Premiere Pro.

Can you translate one or two of the error messages to English, please?