cannot open PSD files on my iMAC

[#1]

i have updated the last version of photoshop, but on my imac the files can't be opened, but on my macbook air the files opened without problems. they have the same OS system and photoshop version.

while the file's opening, the program is freezing

[#2]

i have updated the last version of photoshop, but on my imac the files can't be opened, but on my macbook air the files opened without problems. they have the same OS system and photoshop version.

while the file's opening, the program is freezing