Hi @DABRIT 
I added a few functions to the script that you can use to unlock the treasure box in different ways than shooting the lock, including lockpicking it.
You can make the treasure box invincible (with no health), and you can add the lockpick feature in the client.lua file.
I can help you through the setup if you like.
Iām not really interested in the treasure box as it offers very little realism. What Iād like to do is be able to catch different species of fish in different bodies of water. For example salt water are ocean fish such as Sharks, Seabass, Red Snapper, Tuna, Mackarel, and Halibut, The deeper you go out to sea on a boat the bigger the species of fish are, such as Blue Marlin, Bonito, Swordfish and Sailfish but the chances of angling them are 30/70. I own the script and added my own png. images and added them to items and small resources but couldnt get them to work. I would also like Lake and River fishing for more immersive experience with such species as Bass, Catfish, Gar, Perch, Crappie, Sunfish etc for local tournaments. Is it possible I could work with you to add more fish with different types of poles to buy along with different types of bait ?