1999 Honda Civic A/C tends to stop at low idle and engine r

Hi, since yesterday my honda civic AC tends to stop at idle, the belt faces problem and is not able to engage the AC clutch. When I tend to step on gas, it increases RPM and inturn the belts and engage the AC, after this the AC runs fine but again at idle the same problem arises.

Please let me know what seems to be the problem in this case and the solutions to it.

I would be grateful.

Thanks