[FATAL] TypeError: Cannot read property 'toString' of undefined

[talyguryn]

TypeError: Cannot read property 'toString' of undefined
at md5 (/var/www/hawk.so/hawk/routes/catcher/php.js:9:48)
at getServerErrors (/var/www/hawk.so/hawk/routes/catcher/php.js:87:16)
at Layer.handle [as handle_request] (/var/www/hawk.so/hawk/node_modules/express/lib/router/layer.js:95:5)
at next (/var/www/hawk.so/hawk/node_modules/express/lib/router/route.js:137:13)
at Route.dispatch (/var/www/hawk.so/hawk/node_modules/express/lib/router/route.js:112:3)
at Layer.handle [as handle_request] (/var/www/hawk.so/hawk/node_modules/express/lib/router/layer.js:95:5)
at /var/www/hawk.so/hawk/node_modules/express/lib/router/index.js:281:22
at Function.process_params (/var/www/hawk.so/hawk/node_modules/express/lib/router/index.js:335:12)
at next (/var/www/hawk.so/hawk/node_modules/express/lib/router/index.js:275:10)
at Function.handle (/var/www/hawk.so/hawk/node_modules/express/lib/router/index.js:174:3)