Ink cartridge won’t stay in slot

My magenta ink cartridge won’t stay in its slot. It doesn’t click into place. How do I repair the spring mechanism or where can I find a replacement for the cartridge holder/shoe/I dunno what to call it but it’s where all 4 cartridges are held inside the printer and it’s a stationary part and there is definitely a separation from the rest of the printer so it should be replaceable at the very least. Any information would be great.