Manually delete ipsec leftovers

[fireix]

After deleting some IPSec rules, there is leftover p2 entries. I get tons of errors like below.

When running setkey -DP, it lists this no longer used entry: 192.168.3.0/24[any] any
out ipsec
esp/tunnel

Warning: array_key_first() expects parameter 1 to be array, null given in /usr/local/www/status_ipsec.php on line 345 Warning: count(): Parameter must be an array or an object that implements Countable in /usr/local/www/status_ipsec.php on line 347

Any way I can delete this leftover? I have clicked disconnect in the status overvview, but it just re-connects.