Firstly, you’ve got to ensure that the socket is the problem; checking a lamp with a bulb that you know is working. Then, switch off the breaker before looking for one of these 3 problems.
- Detached wires: Cut the damaged wire near the end and strip the insulation. Bend the wire clockwise under the screw and tighten it.
- Loose Push-in: Simply reattach the loose wire under the appropriate screw and tighten.
- Loose Splice: Remove the wire connector and replace it, ensuring wire ends are even during tightening.
If none of these seem to be the problem, then you will need to call in the electrician. Sorry.