You can see here either the previous owner or yourself has installed two incorrect clamps on the fuel lines. The fuel hose for sure now is damaged and deformed. Using a worm gear clamp is unsafe to use on fuel lines. Many accident investigations have traced fires and deaths due to these clamps because they deform and damage the hose and loosen over time.

You need to get the ear clamp style kit and use the correct sized clamp.
Last weekend I removed my fuel pump assembly and fuel level assembly to clean and test the resistance tracks on the float sensor. You can also get small fuel-hose clamps to press against the fuel hose about 2 inches from the end in order to keep the backed-up fuel from spilling onto the pump when removed. I would also see if you can cut the last inch of deformed hose from the line if there's slack available to install it on the hose nipple to the fuel sender assembly.

I believe the clamp size is 12.8-15.3 mm.
clamp kit https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
hose pliers https://www.amazon.com/dp/B07QKYBV8Q..._47LoEbWBQ670N

Once the clamps are installed they are semi-permanent, give the hose a twist and pull to make sure there's no movement of the hose after installation. The clamps have to be removed with a small air grinder cut-off wheel usually. The other removal method is to pry up the end of the open side of the clamp but takes longer.

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2003 4.6, esotril blue, over 215,000KM. Every previous owner failed to keep up the vehicle maintenance. Restoration project.