RouterOS v7 born died. Because kernel 5.6 it's EOL [1]
Mikrotik should change the kernel to a longterm kernel, like 5.10. And as I read it relies on 5.6.3 while the last version it's 5.6.19.
[1] https://9to5linux.com/linux-kernel-5-6- ... el-5-7-now