You are going to have to fix that SCH first because there are parts miles away from the circuit. Bring those parts close to the Arduino, because they are so far away that I can’t see all of it at once due to it being microscopic.
There is a lot more wrong than I thought.
I suggest going to SCH view, Routing/Select All Traces, then Edit/Delete.
Do the same in PCB view. You need to disconnect all solid connections in other views so they become ratsnest or you will destroy the sketch when you change connections in the primary view.
Now go to BB view and fix all the problems.
See the red TXD pin on HC-05, that is showing you it’s not connected.
Red pins on the UNO too.
N trans is not in BB, ie red dots
Pin 7 of L293D is not connected to yellow wire. Click on pin 7 and you will see no junctions on the yellow wire turn yellow, just the row on the BB
Red bendpoints on yellow wire not connected.
Check the whole thing for red pins, and click on green pins to follow connections to make sure it’s definitely connected. Remember if things are touching it doesn’t mean anything is actually connected, it’s like all EDAs there is no snap connect for touching stuff.