Infinity Animations not installed due to ERROR: error loading [BGMain.exe]

[Kuiriel]

//Installing [Infinity Animations] [v5.1]
//Copying and patching 1 file ...
//ERROR: error loading [BGMain.exe]
//Stopping installation because of error.
//ERROR Installing [Infinity Animations], rolling back to previous state
//Will uninstall 0 files for [infinityanimations\setup-infinityanimations.tp2] component 0.
//Uninstalled 0 files for [infinityanimations\setup-infinityanimations.tp2] component 0.
//ERROR: Unix.Unix_error(20, "stat", "BGMain.exe")
//Please make a backup of the file: Setup-infinityanimations.debug and look for support at: www.shsforums.net/forum/594-infinity-animations/
//Automatically Skipping [Infinity Animations] because of error.
//Using Language [English]
//NOT INSTALLED DUE TO ERRORS Infinity Animations

Debug file is attached.

Is this a silly I have done somehow by using mods like EEex, or is there some other logic behind why Infinity Animations is refusing to install?

Sorry if my question is stupid. I would ask on SHSforums but they seem to be gone.

Edit: Or maybe I am misunderstanding the giant warning on the front which says the mod install will fail because it's still a WIP. People kept referencing it like it worked so I tried to install. Sorry if I have been extra daft and wasted your time.

Setup-infinityanimations.debug.txt

[Kallinteris-Andreas]

i have the same issue on EET

$ ./setup-infinityanimations.exe
[Z:\home\master-andreas\Documents\Games\Baldur's Gate next\setup-infinityanimations.exe] WeiDU version 24900
{setup-ajantisbg2.exe} Queried (pid = 116)05fc:fixme:file:server_get_file_info Unsupported info class e
0108:fixme:file:server_get_file_info Unsupported info class e
0108:fixme:file:server_get_file_info Unsupported info class e
0108:fixme:file:server_get_file_info Unsupported info class e
 version = 24900
Using Language [English]

Using .\lang\en_us\dialog.tlk

Would you like to display the readme? [Y]es [N]o
n

The SETUP-INFINITYANIMATIONS.TP2 mod has 26 distinct optional components.
To save time, you can choose what to do with them at a high level rather
than being asked about each one.

What should be done with all components that are NOT YET installed?
[I]nstall them, [S]kip them, [A]sk about each one? a

Install Component [Infinity Animations]?
[I]nstall, or [N]ot Install or [Q]uit? i

Installing [Infinity Animations] [v5.1.1]
Copying and patching 1 file ...
ERROR: error loading [BGMain.exe]
Stopping installation because of error.

ERROR Installing [Infinity Animations], rolling back to previous state
Will uninstall   0 files for [INFINITYANIMATIONS/SETUP-INFINITYANIMATIONS.TP2] component 0.
Uninstalled      0 files for [INFINITYANIMATIONS/SETUP-INFINITYANIMATIONS.TP2] component 0.
ERROR: Unix.Unix_error(20, "stat", "BGMain.exe")
Please make a backup of the file: SETUP-INFINITYANIMATIONS.DEBUG and look for support at: www.shsforums.net/forum/594-infinity-animations/
Using Language [English]

Install Component [Infinity Animations]?
[I]nstall, or [N]ot Install or [Q]uit? q

SKIPPING: [Fix Areas -> Creature References]
        This component requires the main component.

NOT INSTALLED DUE TO ERRORS Infinity Animations

Press ENTER to exit.