What are common errors encountered during the pre-installation check for LimeSurvey on a Linux server?

One common error encountered during the pre-installation check for LimeSurvey on a Linux server is the missing PHP extension "mbstring." This extension is required for LimeSurvey to function properly. To solve this issue, you can install the mbstring extension using the package manager for your Linux distribution.

sudo apt-get install php-mbstring