PHP7

I posted this question on the wrong forum, so I’m posting it again to hopefully make more sense. We just transferred our website to siteground and are seeing this as an error. I’m not sure what this means, can you help?

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FILE: /home/melis326/public_html/premiermedspachatt.com/wp-content/themes/fortuna/includes/boc_widgets.php
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FOUND 0 ERRORS AND 2 WARNINGS AFFECTING 2 LINES
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17 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7.
97 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7.
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I’m using visual composer version 5.5.2