I installed Wireguard on my Asus router.
Some sites work but others slow or do not response.
I tried adjust MTU but no luck.

Kernel makes following error messages.

Apr  1 16:17:43 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000091 new_key=0x20000092
Apr  1 16:17:43 kernel: ^[[0m
Apr  1 16:18:04 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000092 new_key=0x20000093
Apr  1 16:18:04 kernel: ^[[0m
Apr  1 16:18:05 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000093 new_key=0x20000094
Apr  1 16:18:05 kernel: ^[[0m
Apr  1 16:18:10 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000094 new_key=0x20000095
Apr  1 16:18:10 kernel: ^[[0m
Apr  1 16:18:11 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000095 new_key=0x20000096
Apr  1 16:18:11 kernel: ^[[0m
Apr  1 16:18:41 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0110eb010
Apr  1 16:18:41 kernel: ^[[0m
Apr  1 16:19:17 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:19:17 kernel: ^[[0m
Apr  1 16:19:52 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0110eb010
Apr  1 16:19:52 kernel: ^[[0m
Apr  1 16:20:01 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:20:01 kernel: ^[[0m
Apr  1 16:20:10 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:20:10 kernel: ^[[0m
Apr  1 16:20:10 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:20:10 kernel: ^[[0m
Apr  1 16:20:28 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:20:28 kernel: ^[[0m
Apr  1 16:20:55 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0110eb010
Apr  1 16:20:55 kernel: ^[[0m

That codes in here.
https://github.com/RMerl/asuswrt-merlin.ng/blob/master/release/src-rt-5.02hnd/kernel/linux-4.1/net/core/blog.c

Can you guys review and tell what's wrong?
I don't know computer code :(.