If I try to install the dashboard I get this error: Fatal

If I try to install the dashboard I get this error:

Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262118 bytes) in /home/inesrn/public_html/wp-content/plugins/wpmudev-updates/includes/class-wpmudev-dashboard-site.php on line 997

What can I do?