Name of the plugin you want: SpigotGuard - the most advanced AntiCrash [1.7 - 1.17.x]
Link: https://songoda.com/marketplace/product/spigotguard-the-most-advanced-anticrash-17-116x-the-most-powerful-anticrash-for-spigot-servers.541
Price: $14.99
Name of the plugin you want: InsaneProxy | Anti-Exploit | AntiBot | 1.7-1.17 - MC-Market
Spigot Link: https://www.mc-market.org/resources/16588/
Price: 14.99$