Small fixes based on Discord messages:

- Nullable field in GuildJoinRequest
- Better error handling for event handlers

kord-extensions/src/main/kotlin/dev/kordex/core/ExtensibleBot.kt

@@ -642,10 +642,18 @@ public open class ExtensibleBot(
 	 * @param handler The event handler to be registered.
 	 * @throws EventHandlerRegistrationException Thrown if the event handler could not be registered.
 	 */
+	@Suppress("TooGenericExceptionCaught")
 	@Throws(EventHandlerRegistrationException::class)
 	public inline fun <reified T : Event> registerListenerForHandler(handler: EventHandler<T>): Job {
 		return on<T>(scope = handler.coroutineScope) {
-			handler.call(this)
+			try {
+				handler.call(this)
+			} catch (e: Exception) {
+				logger.error(e) {
+					"Exception thrown by event handler in '${handler.extension.name}' extension - " +
+						"Event type is ${T::class.simpleName} (from ${T::class.java.packageName}); handler is $handler"
+				}
+			}
 		}
 	}
 

kord-extensions/src/main/kotlin/dev/kordex/core/events/extra/models/GuildJoinRequest.kt

@@ -32,7 +32,7 @@ public data class GuildJoinRequest(
 	public val status: ApplicationStatus,
 
 	@SerialName("form_responses")
-	public val formResponses: List<GuildJoinRequestResponse>,
+	public val formResponses: List<GuildJoinRequestResponse>?,
 
 	@SerialName("actioned_by_user")
 	public val actionedByUser: DiscordUser? = null,