ssh laravel 服务器拉取存储库显示错误 500？

Question

我正在尝试运行一个项目。我已经通过 ssh 拉取存储库。但拉取时出现错误。当我尝试访问该网页时，它显示错误：
首页 url 显示：

example.com is currently unable to handle this request.
    HTTP ERROR 500

我的 linux 服务器 apache2 正在运行。但是当我在 error.log 上检查 /etc/log/apache2 上的错误时，它显示：

           [Mon Feb 28 00:00:14.453907 2022] [mpm_prefork:notice] [pid 774] AH00163: Apache/2.4.41 (Ubuntu) configured -- resuming normal operations
        [Mon Feb 28 00:00:14.453934 2022] [core:notice] [pid 774] AH00094: Command line: '/usr/sbin/apache2'
        [Mon Feb 28 04:26:16.096546 2022] [php7:error] [pid 14891] [client ......:59882] PHP Parse error:  syntax error, unexpected '|', expecting variable (T_VARIABLE) in /var/www/admin/vendor/psr/log/src/LoggerInterface.php on line 30
        [Mon Feb 28 04:26:16.096593 2022] [php7:error] [pid 14891] [client ....:59882] PHP Fatal error:  Exception thrown without a stack frame in Unknown on line 0
        [Mon Feb 28 04:26:16.097333 2022] [php7:error] [pid 14891] [client .....:59882] PHP Parse error:  syntax error, unexpected '|', expecting variable (T_VARIABLE) in /var/www/admin/vendor/psr/log/src/LoggerInterface.php on line 30
        [Mon Feb 28 04:26:16.097351 2022] [php7:error] [pid 14891] [client .....:59882] PHP Fatal error:  Exception thrown without a stack frame in Unknown on line 0
 [Mon Feb 28 00:00:14.453934 2022] [core:notice] [pid 774] AH00094: Command line: '/usr/sbin/apache2'
        [Mon Feb 28 04:26:16.096546 2022] [php7:error] [pid 14891] [client ......:59882] PHP Parse error:  syntax error, unexpected '|', expecting variable (T_VARIABLE) in /var/www/admin/vendor/psr/log/src/LoggerInterface.php on line 30<br>
        [Mon Feb 28 04:26:16.096593 2022] [php7:error] [pid 14891] [client ....:59882] PHP Fatal error:  Exception thrown without a stack frame in Unknown on line 0<br>
        [Mon Feb 28 04:26:16.097333 2022] [php7:error] [pid 14891] [client .....:59882] PHP Parse error:  syntax error, unexpected '|', expecting variable (T_VARIABLE) in /var/www/admin/vendor/psr/log/src/LoggerInterface.php on line 30
        [Mon Feb 28 04:26:16.097351 2022] [php7:error] [pid 14891] [client .....:59882] PHP Fatal error:  Exception thrown without a stack frame in Unknown on line 0

对于 Php 解析错误，我使用以下命令配置composer.json 文件

 "config": {
            "platform": {
                "php": "7.4.27"
             }
       }

并运行：
composer dump-autoload< /code>，它仍然显示相同的错误
我删除了供应商目录和composer.lock文件，并通过运行composer install
重新安装依赖项 仍然显示错误
我已授予公共和存储文件夹完全权限

我被卡住了，无法访问该网页。
任何建议、建议、解决方案都将受到高度赞赏。
提前致谢！！