Bucharest low latency server issues

Hello,

One of the M247 low latency resolvers in Bucharest (194.68.44.147)  is failing daily in the last few days. I'm using Mikrotik router and it's a nightware to constantly change my static entries to have DNS working nicely.
DDoS attacks or something else is happening?

Here is the MTR output:

Target Name: dns.nextdns.io
         IP: 194.68.44.147
  Date/Time: 06.06.2022 20:52:21 - 06.06.2022 21:02:21

Hop  Sent  PL%    Min     Max    Avg  Host Name / [IP]
  1   601    0   0,00    0,39   0,25  192.168.43.254 [192.168.43.254]
  2   601   86  14,47   23,74  15,57  10.7.0.1 [10.7.0.1]
3 601 1 14,92 35,10 16,47 vlan1703.as032.buc.ro.m247.com [89.46.101.1]
  4   601    0  14,29   28,81  15,84  172.30.255.1 [172.30.255.1]
  5   601    0  14,29   57,08  16,99  172.30.245.81 [172.30.245.81]
6 601 0 14,23 28,99 16,10 vlan30.xs1b.dc2.buc1.ro.m247.com [89.40.40.137]
  7   601    0  14,28   28,59  15,73  172.30.244.253 [172.30.244.253]
  8   140    0  14,50   43,12  16,10  172.30.244.254 [172.30.244.254]
  9   140    0  14,75  130,20  25,41  172.30.255.66 [172.30.255.66]
10 601 100 0 0 0 dns.nextdns.io [194.68.44.147]

Only the LAST hop is failing packets, so the routing is fine, the destination host is not.