fix

src/main/java/com/spaceniklas/villagerfixes/Listeners.java

@@ -51,12 +51,18 @@ public void onPlayerJoinEvent(PlayerJoinEvent e){
 
     @EventHandler
     public void onEntityDamageByEntityEvent(EntityDamageByEntityEvent e){
+        if(Villagerfixes.config.getBoolean("make-invincible-players-damage-vincible-entities") && countdown.get(e.getDamager()) != null && countdown.get(e.getDamager()) && countdown.get(e.getEntity()) == null || Villagerfixes.config.getBoolean("make-invincible-players-damage-vincible-entities") && countdown.get(e.getDamager()) != null && countdown.get(e.getDamager()) && !countdown.get(e.getEntity())) {
+            if(!e.isCancelled()){
+                e.setCancelled(false);
+            }
+
+        }else
         if(countdown.get(e.getDamager()) != null && countdown.get(e.getDamager())){
             e.setCancelled(true);
-            e.getDamager().sendMessage(ChatColor.translateAlternateColorCodes('&', Villagerfixes.config.getString("still-invincible")));
-        }else
+            e.getDamager().sendMessage(ChatColor.translateAlternateColorCodes('&', Villagerfixes.config.getString("still-invincible-damager")));
+        }
         if(countdown.get(e.getEntity()) != null && countdown.get(e.getEntity())){
-            e.getDamager().sendMessage(ChatColor.translateAlternateColorCodes('&', Villagerfixes.config.getString("still-invincible")));
+            e.getDamager().sendMessage(ChatColor.translateAlternateColorCodes('&', Villagerfixes.config.getString("still-invincible-victim")));
             e.setCancelled(true);
         }
     }

src/main/resources/config.yml

@@ -6,6 +6,8 @@ command-name: 'invincibility' #The name of the command you have to execute to es
 
 #LANGUAGE SETTINGS
 #You can use colour codes by doing & and then a letter or number. Reference image: https://www.spigotmc.org/attachments/example2-png.402641/
-still-invincible: '&cYou are still in invincibility! Do &l/invincibility &r&cto disable your invincibility!' #Message send when player takes/gives damage to another entity.
+still-invincible-victim: '&cYou are still in invincibility! Do &l/invincibility &r&cto disable your invincibility!' #Message send when player takes/gives damage to another entity.
+still-invincible-damager: '&cThe player you are hitting is still in invincibility!' #Message send when player takes/gives damage to another entity.
 already-vincible: '&cYou are already able to damage/get damaged by other entities! If you believe that this is a bug please contact a server administrator!' #If a player runs e.g /invisibility but is already vincible.
-command-message: '&aYou are now able to damage/get damaged by other entities!' #Message when a player gets rid of their invisibility by command.
+command-message: '&aYou are now able to damage/get damaged by other entities!' #Message when a player gets rid of their invisibility by command.
+make-invincible-players-damage-vincible-entities: false #Does what it says ;)

target/classes/config.yml

@@ -6,6 +6,8 @@ command-name: 'invincibility' #The name of the command you have to execute to es
 
 #LANGUAGE SETTINGS
 #You can use colour codes by doing & and then a letter or number. Reference image: https://www.spigotmc.org/attachments/example2-png.402641/
-still-invincible: '&cYou are still in invincibility! Do &l/invincibility &r&cto disable your invincibility!' #Message send when player takes/gives damage to another entity.
+still-invincible-victim: '&cYou are still in invincibility! Do &l/invincibility &r&cto disable your invincibility!' #Message send when player takes/gives damage to another entity.
+still-invincible-damager: '&cThe player you are hitting is still in invincibility!' #Message send when player takes/gives damage to another entity.
 already-vincible: '&cYou are already able to damage/get damaged by other entities! If you believe that this is a bug please contact a server administrator!' #If a player runs e.g /invisibility but is already vincible.
-command-message: '&aYou are now able to damage/get damaged by other entities!' #Message when a player gets rid of their invisibility by command.
+command-message: '&aYou are now able to damage/get damaged by other entities!' #Message when a player gets rid of their invisibility by command.
+make-invincible-players-damage-vincible-entities: false #Does what it says ;)