counter not found is now an actual error that you can get

src/lib/counter.ts

@@ -85,6 +85,7 @@ export async function announceCounterUpdate(bot: Client, member: GuildMember, de
 }
 
 export async function changeCounterInteraction(interaction: CommandInteraction, member: GuildMember, amount: number, type: string) {
+  try {
     const counter = await getCounterData(type);
 
     const newCount = await changeCounter(amount, type);
@@ -93,6 +94,11 @@ export async function changeCounterInteraction(interaction: CommandInteraction,
     interaction.followUp({
       content: `${counter.emoji} **You have ${amount > 0 ? 'increased' : 'decreased'} the counter.**\n\`\`\`diff\n ${newCount - amount}\n${getSign(amount)}${Math.abs(amount)}\n ${newCount}\`\`\``
     });
+  } catch(err) {
+    interaction.followUp({
+      content: (err as Error).toString()
+    });
+  }
 }
 
 export async function counterAutocomplete(interaction: AutocompleteInteraction) {