This is surely a false positive. But it is very bad advertising for your site. People will run away and never return.
"An infected file attempted to run on your device.
Threat name: JS:Trojan.Cryxos.9850
Path: /Users/da/Library/Containers/com.apple.Safari/Data/Library/Caches/com.apple.Safari/WebKitCache/Version 16/Records/DB80285802190D06E65F8029DC01D2310F54DD5B/Resource/09BB004296446B5709F586B466E7490F44C12C98-blob=>(INFECTED_JS)
We deleted the file to prevent malicious commands from being executed on your device."