extDB2
"extDB2: Error with Database Connection" in arma3server*.rpt:
The extDB2 addon is loaded, but a connection to the database cannot be established.

1. Check that the connection details in the extdb-conf.ini file are correct:
[databaseName]
Type = MySQL
Name = databaseName

Username = databaseUserName
Password = databaseUserNamePassword

IP = databaseIP
Port = databasePort
Real-world example:

[altislife]
Type = MySQL
Name = altislife

Username = arma3
Password = 75t4nZ33w33xQ2

IP = 127.0.0.1
Port = 3306
2. Check that the DatabaseName in description.ext is correct:
    DatabaseName = "databaseName"; //Config name that'll be grep in the extdb-conf.ini. Default: [altislife]
Real-world example:

    DatabaseName = "altislife"; //Config name that'll be grep in the extdb-conf.ini. Default: [altislife]
3. Check that Microsoft Visual C++ 2015 Redistributable (x86) is installed (Windows):
Start → Control Panel → Programs → Programs and Features → Microsoft Visual C++ 2015 Redistributable (x86)

4. Check that tbbmalloc.dll is unblocked and is in the same folder as arma3server.exe (Windows):
The tbbmalloc.dll file is included with the extDB2 releases.

Check that the file is not blocked by Windows by:

Right-clicking on the file

Clicking "Properties"

Under the "General" tab and at the bottom of the window click "Unblock." If the option to unlock is not present then the file was not blocked.