Symfony 3.4 Cache clear after every change in Code

Question

I have older project on Symfony 2.8. Now i am moving / upgrading it to 3.4 framework on php version 8.

I have installed new framework of symfony 3.4 and copying old files into new and making changes as required like syntax changes, format changes etc.

I am facing an issue where i have to clear the cache of the project everytime. Like if i load the project in the browser first time it will show. But if without any change in code , if i refresh the page it goes into loading state, and does not return the result. Nothing is shown in log files. But once i clear the cache "php bin/console cache:clear" it works again.

Project is on Xampp : 3.3.0

Thank you