Why can't I enable the local localhost after I restart apache2.2 and restart the apache2.2 service?

Why can't I enable the local localhost after I restart apache2.2 and restart the apache2.2 service ???? I installed XAMPP on the local machine and created a new php project. there was no problem a few days ago. no matter whether I use localhost or the local ip address, I can open the webpage quickly, even if an exception occurs occasionally, why can't I restart the local localhost after I restart apache2.2 for a while and restart the apache2.2 service ????
I installed XAMPP on the local machine and created a new php project. there was no problem a few days ago. no matter whether I use localhost or the local ip address, I can open the webpage quickly, even if an exception occurs occasionally, the web page cannot be opened, and the computer will be restarted. for the past two days, I don't know why. localhost will be able to be opened for a while. After I restart apache2.2 in the service, you can open the webpage locally. if you refresh the page, a problem may occur again. I checked the information on the internet and didn't find a suitable one. I felt that the problem was caused by the apache2.2 configuration. could you please advise ......

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If this is the case, it is difficult to answer the question. you can check your apache log content post to see if you can find the cause.
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Has encountered similar problems, usually firewall problems or anti-virus software
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This log fails to respond, and the error log content is pasted. In addition, try to provide the log part when the fault occurs.