Fixing EA and modifying indicator MT5

Fix EA 

I have range breakout EA, The EA work very well but I have error with symbol GER30 index, The EA sometimes work well with this symbol but sometimes send very huge volume size like 184445.965... lots and i got error invalid volume, When there is no open position in the terminal, the expert works properly, but when there is an open position in terminal, for example, gold, Nasdaq, or the USDJPY, or US30, this problem often occurs, and sometimes it does not occur, I need you to fix it.

Modifying the indicator

 The indicator have 4 sessions start in time and end with time with two vertical lines, I need four horizontal lines,

Two horizontal lines for the higher and lower of the session with specific color and line style for each session and make it (TRUE/FALSE)

Two extended horizontal lines for higher and lower of the session with specific color and line style for each session with ((((time end for extended lines only)))) and make it (TRUE/FALSE)

Upper and lower lines should be TRUE/FALSE with specific color and specific line style from input menu

Extended Upper and lower lines should be TRUE/FALSE with specific color and specific line style from input menu with end time

Add time filter

Mo. TRUE/FALSE

TU.  TRUE/FALSE

WE. TRUE/FALSE

TH.  TRUE/FALSE

FR. TRUE/FALSE

I need something to the indicator if the price 35$ ok for you.

I need two more extended horizontal lines for each session upper and lower the range calculation with % of the range for example the range today start from 10AM to 2PM the upper range and the lower range =100% = 50 points and if I entered in input 100 that mean 100% of the distance between the new upper extended horizontal line and the upper extended line = the distance between the range = 50 points if I entered in input 50 that mean 50% = half the distance = 25 points….

New input

Second extended horizontal lines in % (0= no new extended horizontal lines) =

Line style

Line color

I want a code that is free of errors and free of warnings.