The entrance door, the toilet is next to it (on the left), which is a big killer. What should I do?
Judging from the description of your problem, the toilet is next to the entrance door, which is not a disaster in terms of geomantic omen. The real catastrophe is that the toilet door faces the entrance door.
The toilet is near the gate. At best, it will only make people feel uncomfortable when they enter the door.
Solution: If space permits, put some tall big-leaf plants on the toilet door to prevent the dirty air.