"Fixing 71 compilation errors and debugging a complex MQL5 EA (GBA System)"

Specification

Problem Description
I am seeking an expert MQL5 developer to resolve a series of compilation errors in a complex Expert Advisor (GBA System). The project consists of a main file and several header files (.mqh). Currently, the code fails to compile, showing 71 errors and 17 warnings.
The primary issues include:
Undeclared Identifiers: Errors such as line, openTrades, and MAX_TOKENS are not recognized in files like GBA_Dashboard.mqh and GBA_APIManager.mqh.
Class & Pointer Issues: Multiple errors stating class type expected and pointer not allowed, particularly within GBA_TechnicalAnalysis.mqh regarding SIndicatorHandles.
Syntax & Operator Errors: Various some operator expected, identifier expected, and illegal operation use (e.g., with the == operator).
Array & Reference Issues: Errors indicating array required and reference cannot be used in files like GBA_CorrelationEngine.mqh and GBA_SelfCorrection.mqh.
Function Conflicts: Overloading issues with built-in functions such as CopyTickVolume.
Requirements
Review the entire project structure and fix all link/include issues between the .mq5 and .mqh files.
Ensure a clean compilation with zero errors and zero warnings.
Maintain the integrity of the existing trading logic while fixing the syntax and architectural bugs.
Provide a brief explanation of the major fixes applied.

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Project information

Budget
50 - 100 USD
Deadline
from 1 to 10 day(s)