Followed https://httpd.apache.org/docs/2.4/mod/mod_dav.html (and a few other places). I have read access to my /dav/ folder, but when I attempt to write, I get: ``` The locks could not be queried for verification against a possible "If:" header. [500, #0] Could not open the lock database. [500, #400] APR does not understand this error code: [client X.X.X.X:XXXX] Could not open database. [500, #1] ``` I quadruple-checked that permissions were right. They're currently 777. Yes, I'll listen to your security lecture once I get this working. I don't have SELinux installed but AppArmor seems to be working. I haven't touched it from whatever the Debian installer configured. Here are my hypotheses:1. Documentation is wrong 2. I'm missing a package to make the DavLockDB file (but I think I have all dependent, suggested and recommended packages installed)3. AppArmor is interfering
Suggestions?

