In addition to the ways described here: https://gfeaxblog.wordpress.com/2017/12/14/ax-2012-clear-the-cache/
you have a couple of additional options to refresh the cache
#1 Run the class from browser
https://Environment name/?cmp=Company name&mi=SysClassRunner&cls=SysFlushAOD
Note: Please replace the text highlighted with your environment data
#2 Run Data cache clean up from the System parameters
System administration > Setup > Data cache > Data cache parameters > Cache refresh tab