Can't manually connect HC-05 master to slave
I found the solution.

Apparently, both of my modules were at 9600 baud rate when the optimal rate is of 38400. I had to use AT+ORGL in command mode to reset both slave and master. Afterwards I was able to connect them manually.

So apparently ERROR:(7) represents a failed connection? Just don't forget to make sure everything is exactly like the tutorial that's teaching you.