[Erich Nachtigall]

You may read more about mutliple tips about corrupted .pst files below:

https://www.filerepairforum.com/forum/adobe/adobe-aa/photoshop/1407-recover-corrupted-psd-file

If this solution can’t help you, then make use of Photoshop Repair Toolbox

Refer link to demo: https://www.photoshop.repairtoolbox.com/