PHP Warning: flock(): FileStreamWrapper::stream_lock is not implemented

Hi there,

Seems like it is related to PHP, the flock function failed to lock the cache file when we try to read it. Please try to flush the cache file first.

Filesystem.php line 953:

if (flock($handle, \LOCK_SH)) {
            try {
                $data = @include $file;
            } catch (\Throwable $e) {
                $error = $e->getMessage();

                $file_error = $e->getFile();
                if ($this->is_cache_file($file_error)) {
                    $errmsg = 'E: '.$error.\PHP_EOL;
                    $errmsg .= 'L: '.$e->getLine().\PHP_EOL;
                    $errmsg .= 'F: '.basename($file_error).\PHP_EOL;
                    $this->suspend_cache_file($file, $errmsg);
                }

                $this->log('err', 'internalproc-internalfunc', 'cache_get: '.$error);
                $data = false;
            }

            @flock($handle, \LOCK_UN);
        }
        @fclose($handle);

Thanks.