For the extension Akeeba Backup Core package version 8.0.2 is available, but it requires at least PHP version 7.2 while your system only has 7.0.25-0ubuntu0.16.04.1
For the extension Akeeba Backup Core package version 7.4.0.1 is available, but it requires at least PHP version 7.1 while your system only has 7.0.25-0ubuntu0.16.04.1
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