activating error

I guess this version is not compatible with the current version of BadgeOS/BuddyPress/bbPress?

I turned off all of my plugins, except for the ones related to this add-on.. and tried installing again. Still fails, but at least now I can see some errors.

Fatal error: uncaught Error: [] operator not supported for strings in X:\{my path here}\wp-content\plugins\badgeos-community-add-on\includes\bp-members.php on

Error: [] operator not supported for strings in X:\{my path here}\wp-content\plugins\badgeos-community-add-on\includes\bp-members.php on line 222

# Time Memory Function Location
1 0.0001 410736 {main}() ..\plugins.php:0
2 0.0001 411408 require_once(‘X:\{my_path}\wp-admin\admin.php’) ..\plugins.php:10
3 0.0001 411888 require_once(‘X:\{my_path}\wp-load.php’) ..\admin.php:31
4 0.0001 412632 require_once(‘X:\{my_path}\wp-config.php’) ..\wp-load.php:37
5 0.0002 419664 require_once(‘X:\{my_path}\wp-settings.php’) ..\wp-config.php:89
6 0.0848 6932368 do_action() ..\wp-settings.php:450
7 0.0848 6932744 WP_Hook->do_action() ..\plugin.php:453
8 0.0848 6932744 WP_Hook->apply_filters() ..\class-wp-hook.php:310
9 0.1504 7799320 bp_init() ..\class-wp-hook.php:286
10 0.1504 7799320 do_action() ..\bp-core-dependency.php:252
11 0.1504 7799696 WP_Hook->do_action() ..\plugin.php:453
12 0.1504 7799696 WP_Hook->apply_filters() ..\class-wp-hook.php:310
13 0.169 7914392 bp_setup_bav() ..\class-wp-hook.php:286
14 0.169 7914392 do_action() ..\bp-core-dependency.php:140
15 0.169 7914768 WP_Hook->do_action() ..\plugin.php:453
16 0.169 7914768 WP_Hook->apply_filters() ..\class-wp-hook.php:310
17 0.1773 7951072 BadgeOS_Community_Members->setup_nav() ..\class-wp-hook.php:286