Installations Problems

[rompeweb]

im trying to install ViVVO and i just install it but when i got to the website is giving me this message

Fatal error: Call to undefined function most_emailed() in /home/rompeweb/public_html/include/toolboxes.php on line 16
what can i do?
Version 3.40

[Alex]

Please submit a support ticket with your license number.