Question Fatal error

I can't connect to my website. I get the attached fatal error.
It suggests setting pcre.jit=0 in ServerRequestCreator.php but I can't find any reference to pcre.jit in the file.
Can anyone suggest where to change this?
Webtrees ver 2.1 and PHP ver 7.4. 
Thanks
David

This error is caused by your system environment and has nothing to do with webtrees.

Here are the solutions  for the error "Fatal error: Uncaught ErrorException: preg_match(): Allocation of JIT memory failed, PCRE JIT will be disabled.":

1. Increase PHP Memory Limit:
   • If your PHP script is unable to allocate enough memory for PCRE JIT due to memory limits, you can try increasing PHP's memory limit. In your 
     Code:

     php.ini
      file, find the 
     Code:

     memory_limit
      setting and increase it to a higher value, such as:
       
     Code:

     memory_limit = 256M
   • Alternatively, you can temporarily increase the memory limit in your script using the 
     Code:

     ini_set()
      function:
      
     Code:

     ini_set('memory_limit', '256M');
2. Disable PCRE JIT:
   • If the issue persists and you do not need the performance boost from PCRE's JIT compilation, you can consider disabling PCRE JIT. In your 
     Code:

     php.ini
      file, set 
     Code:

     pcre.jit
      to 0:
       
     Code:

     pcre.jit=0
   • With JIT disabled, regular expression matching will not use JIT compilation, which may be slightly slower but will avoid memory allocation issues.

… or just contact your web host.

Thanks guys.
Unfortunately my host is Plusnet and they have abandoned help for their free webspace.
However I still have access to php.ini via their Control Panel.
I tried adding the code suggested by xmif but still get the same error message.
This is my php.ini:
safe_mode=Off
display_errors=On
upload_max_filesize=2M
post_max_size=8M
max_execution_time=120
memory_limit=256M
pcre.jit=0

Is there anything in it that would cause the error?
Thanks again
David

Are you able to use a newer version of PHP?

Yes I have the choice of PHP-CGI-8.2 or 8.3

Try switching to PHP 8.3

Do you get the same error?

I tried PHP-CGI-8.3 but got the same error message.

Are you sure your php.ini setting is taking effect?

You often need a separate php.ini for each PHP version.

To be 100%, create a phpinfo() file.

Greg,
you could be right.
When I tried phpinfo() I got the following error:
Fatal error: Uncaught Error: Call to undefined function phpinfo() in /services5/util/c/c/ccgi.username.plus.com/public/phpinfo().php:2 Stack trace: #0 {main} thrown in /services5/util/c/c/ccgi.username.plus.com/public/phpinfo().php on line 2
Thanks
David

spark43 wrote:

[...] my host [...] have abandoned help for their free webspace.

 

"If someone offers you a free lunch, you are the lunch"

spark43 wrote:

When I tried phpinfo() I got the following error:
Fatal error: Uncaught Error: Call to undefined function phpinfo()

This is without a php.ini file taking effect, possibly breaking things?

Looks like they did not only stop support, but have also crippled the installation beyond barely usable.

My advice: look for another web hosting provider.
It does not need to be expensive.
For my (shared) web hosting I pay 25 or 30 EUR per year.
That is less than one take-away coffee per month.

I guess it's possible that your host has disabled the phpinfo() function.

Try the following script instead?

When I ran your code I got a reply:
string(1) "1"
Does this tell you anything?

I'm beginning to agree with bertkoor, maybe its time to move to a more responsible web host.

> Does this tell you anything?

Yes. It tells me that either

1) You have put the line "pcre.jit=0" in the wrong php.ini file. (Each version of PHP has its own file.)

2) Your webhost doesn't allow you to use php.ini files, and all the settings are ignored.

If (1), then you may be able to get your site working again. If (2), I think you may be out of luck.

> I'm beginning to agree with bertkoor

Your sig says you are using MySQL 5.5. This reached end-of-live in 2018. This will likely cause more issues in the future.

I also agree with bertkoor...

OK guys I give in.
I can't change anything and Plusnet won't talk to me so its time to move on.
Thanks again for all your help.
David