I have a civic 98 last wekend I was driving and the engine just stopped and it didn't start again. The radio was playing but it continued playing just the engine won't start it just cranks but it doesn't have spark

Perform tests, in Sections A and B, below:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563.html

Get your coil tested or mite be your CDI.

If the car passes the 3 basic diagnostic tests, the problem likely resides with the ignitor, coil, or distributor housing (failing internal sensors).