Hey guys can anyone help me out so i did download the marmaros v2 source and client (pi) but i have an issue (i'm pretty now to coding)

When i click on Compile yes i did change it to my java but i did change the names etc of the scape into mine did replace the yell system cause it was simply done
but when i try now to Compile it doesn't work it does say i got an error but idk where and what is this the issue why it doesn't work? here is an image 8b2dd4e43a26226b4495492df5d49531.png