session.olm - no file or directory

[ceearrbee]

13:11:37 weechat     | matrix: Encryption loaded. To send encrypted messages in a room, use command /encrypt on with a room as active current buffer
13:11:37 weechat     | matrix: Connecting to homeserver URL: https://matrix.org/
13:11:37 weechat =!= | lua: function "register" not found (or failed) in file "~/.weechat/lua/autoload/olm.lua"
13:11:37 weechat     | lua scripts loaded: matrix
13:11:37 weechat     | Plugins loaded: alias, aspell, charset, exec, fifo, guile, irc, javascript, logger, lua, perl, python, relay, ruby, script, tcl, trigger, xfer
13:11:43  matrix =!= | olm: Error: ~/.weechat/[STUFF].session.olm: No such file or directory, reading saved session device: [STUFF]
13:11:43  matrix =!= | olm: Downloading otk for user @crb:matrix.org, and device_id: [STUFF]
13:11:43  matrix =!= | API call returned error: Unrecognized request(M_UNRECOGNIZED)

Any suggestions? Ubuntu 16.10 and I've compiled olm and luaffifb.