Crashes every time user click on activation link from email.

[aedahh]

Hello,

My setup:
-Ubuntu
-Etherpad version from git: a676640
node js v0.10.37
npm 1.4.28

Etherpad crashes with log below.
Happens every time user click on activation link from email.

[2015-03-25 17:56:50.832] [INFO] ueberDB - Flushed 3 values
[2015-03-25 17:57:04.240] [ERROR] console - ReferenceError: fileName is not defined
at Query.mySqlErrorHandler (/opt/etherpad/local/etherpad/etherpad-lite/node_modules/ep_user_pad_frontend/hooks.js:42:9)
at Query.emit (events.js:117:20)
at Query.Sequence.end (/opt/etherpad/local/etherpad/etherpad-lite/node_modules/ep_user_pad_frontend/node_modules/mysql/lib/protocol/sequences/Sequence.js:70:12)
at Query.ErrorPacket (/opt/etherpad/local/etherpad/etherpad-lite/node_modules/ep_user_pad_frontend/node_modules/mysql/lib/protocol/sequences/Query.js:93:8)
at Protocol._parsePacket (/opt/etherpad/local/etherpad/etherpad-lite/node_modules/ep_user_pad_frontend/node_modules/mysql/lib/protocol/Protocol.js:172:24)
at Parser.write (/opt/etherpad/local/etherpad/etherpad-lite/node_modules/ep_user_pad_frontend/node_modules/mysql/lib/protocol/Parser.js:62:12)
at Protocol.write (/opt/etherpad/local/etherpad/etherpad-lite/node_modules/ep_user_pad_frontend/node_modules/mysql/lib/protocol/Protocol.js:37:16)
at Socket.ondata (stream.js:51:26)
at Socket.emit (events.js:117:20)
at Socket. (_stream_readable.js:765:14)
[2015-03-25 17:57:04.240] [INFO] console - graceful shutdown...

[PabloCastellano]

Had this same problem testing in a Debian Jessie virtual machine but not in a Ubuntu Xenial virtual machine. Both had nodejs installed from the nodejs repositories (instead of Debian/Ubuntu official repos).