I'm losing data from my external drive

Does anyone have a similar problem? it has happened to me X times that I save .psd + jpg + pdf to a folder on an external drive (external SSD Samsung T7 ) I open the folder for example in two days and it is empty, while I sent the jpg+pdf files by email and now they are not there, and note in the folder preview the data is still visible, but inside they are not ... I thought it was a disk error but it is not, I tried the LaCie disk and after some time it did also ... does anyone know what to do with it is frustrating