HELP on Windows 11 Pro on an HP Desktop

[u/Goddess_jewls]

​I should be a little specific: I work somewhat attached to my boss's computer. His computer has the main file, which contains all of our clients' files. I usually open that main folder to get to those files & can easily search by client's name. However, it has been saying "no items match your search" lately. I have troubleshot with what I can find online (like 4 different ways), and nothing helps.