You might be having problems with some of the unusual syntax of ObjectScript.

Like other languages created in the 1960s (E.g., FORTRAN IV and PL/I), ObjectScript does not have any reserved words.  The word 'if' can be a command if it appears where a command is specified; it can be local variable if it appears where an expression value is expected; it can sometimes be a global variable or program name if it appears after '^';  it can be a function name if it appears after '$$';  it can be a macro name if it appears after '$$$';  it be a routine or procedure name if it appears after the 'do' command; if can sometimes be a method or a property name if it appears after '.'; etc.

Your macros
    #define TestIf(%arr)    if %arr>0 QUIT 5          ;; legacy IF command
    #define TestIf(%arr)    if (%arr>0) {QUIT 5}     ;; more modern IF command
looks as if TestIf should be expanded where a command is expected so that it conditionally executes the command 'QUIT 5' which would exit the current function with a return value of 5.

However, your macro placement
    set a = $$$TestIf(3)
looks like $$$TestIf is going to be an expression containing a value for the right side of an assignment (a SET command).  It expands as
    set a = if 3 < 0 QUIT 5
which is a syntactically correct assignment of 'a' assigned the value of the variable 'if'  and that 'set' command is followed by a command named '3' which is bad syntax.

Your macro
#define logDebug(%arr) $SELECT(^GlFSL("Debug")>0:Entry^HS.Local.VA.Util.Log(%arr,,"D"),:QUIT)

looks like a macro  containing the built-in '$select' function and the macro should expand into conditional expression (as opposed to a macro containing the command 'if' which should expand in to a conditional statement.)  The first $select argument ^GlFSL("Debug")>0:Entry^HS.Local.VA.Util.Log(%arr,,"D") evaluates ^GlFSL("Debug")>0 and it that comparison is true, the $select evaluates Entry^HS.Local.VA.Util.Log(%arr,,"D") as the final value of the $select expression.  If the selector of the first argument is false then $select goes on the second argument ,:QUIT.  This has the syntax for the default value of a argument of the built-in $case function rather than be correct syntax for a $select argument.  For a $select you would write 1:QUIT which would return the value of the QUIT variable.  However,  I suspect you might have wanted a QUIT command which would terminated the current routine/procedure.  In that case you should write  the conditional commands
    if ^GlFSL("Debug")>0 then { set temp=Entry^HS.Local.VA.Util.Log(%arr,,"D")} else {QUIT}
if you do not execute the QUIT command then you can continue executing the next command line using the conditionally set 'temp' variable.

ETNMINIM makes a very small ^ERRORS log with just 4 entries:  As *COM comment line, a *STACK,0,V,$H line containing the $HOROLOG system variable, a *STACK,0,V,$I line containing the $IO system variable, and a *STACK,0,V,$J line containing the $JOB system variable.  Normal ^ERROR logs created by ^%ETN usually contain 100s of entries, including many other entries other than *COM and *STACK..  Your Error Details displays Expression Value entries for the $H, $I and $J variables. and they all seem correct including a $H value of  67407,67118 which is a date of 07/21/2025 and a local time of  06:38:38PM.

The Error Details also displays a Process box containing "39452 01/06/1841 18 38-38 No: 82".  The job number (39452), time (18:38:38 ) and the Error ID (82) all seem correct but the Error Details seem to have incorrectly used the number 7 as the date value.

I have no experience with the Error Details display generated by the SMP web page.  Possibly that web page is decoding a *STACK entry (or some other *XXX entry) for the date that was not generated by ETNMINIM.  Since the %ETN logging failure was reported by error id 82 and there seems to exist an error id 81, it is possible that some useful information can be found by executing ZWRITE ^ERRORS(67407,81) in the LEARNING namespace.  Remember this particular ^ERRORS log entry was generated by a MERGE command that did not complete.