Severity: Warning
Message: Redis::connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known
Filename: drivers/Session_redis_driver.php
Line Number: 138
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Step 1: read the error messages carefully. Step 2: find the lines of code they refer to, and see if you can spot the problem the error message describes. Step 3: if you don't understand the error message, search for existing questions, and [check this reference](https://stackoverflow.com/questions/12769982/reference-what-does-this-error-mean-in-php). Step 4: if you're still stumped, post a [minimal reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) here so we can see the code that's causing the error. – Vickel May 30 '22 at 23:00
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as a side note, Codeigniter-2 is no longer supported and might not be compatible with your setup. – Vickel May 30 '22 at 23:03