Gilera Runner Electrical/Wiring/Indicator Fault? PLZ ADVISE!

[scarfacen8]

After trying a DIY on installing a HAWK moped alarm, i have stumbled upon some electrical problems...

First of all, my main fuse blew, which caused all the electrics to not respond; once i changed the fuse my electrics are back on but when i turn on my bike the horn is on constantly, the rear light thinks its an indicator (it flashes in rhythm with the working indicator), my front left indicator works fine but the rear one isn't but both of the right ones work fine?

I think its either, my wiring has been fryed, my c.d.i has gne (hope not) or the indicator relay has gone?

Can someone with knowledge of these sort of problems PLEASE help as I'm not even 16 and i saved a year to get this bike and now its broken before i could even ride it!!! (Had bike for over a week)

If it isn't a simple problem does anyone know the mechanic charges for fixing this problem?

Gilera Runner SP50 55Plate (Old Shape)

Also the indicator switch i would imagine is working fine as the right indicator works fine, also i have a constant oil light on...

Here is my wiring diagram - https://www.ukscooterforum.co.uk/forums/viewtopic.php?f=8&t=1271&start=0

52 minutes ago
And when i press the brake light while the indicators are on the indicator stops flashing and stays still with the brake light
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$carface