Fluid is leaking from the slave cylinder. When it leaks out, the clutch is not engaging.
The hydraulic system used on your Honda is the same as your brake system. If there are leaks in the system and air in the lines, the pressure plate cannot be engaged or disengaged which is required to operate the clutch and make driving impossible. An inspection should be carried out by a qualified technician such as the ones here at YourMechanic to locate the leak and have it fixed.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing