
If I can download and install 2.3 I'll give it a try.
Errors reported using PHP 8.1.0 with Wampserver (no problems when using PHP 7.4.26):-
( ! ) Notice: Only variable references should be returned by reference in C:\wamp64\www\jordan\couch\auth\auth.php on line 132
Call Stack
# Time Memory Function Location
1 0.0001 368296 {main}( ) ...\index.php:0
2 0.0002 386288 require_once( 'C:\wamp64\www\jordan\couch\header.php ) ...\index.php:7
3 0.0235 467952 require_once( 'C:\wamp64\www\jordan\couch\install.php ) ...\header.php:333
4 0.0239 610208 KParser->get_HTML( ) ...\install.php:650
5 0.0279 675256 KNode->get_HTML( ) ...\parser.php:966
6 0.0279 676168 KNode->get_HTML( ) ...\parser.php:446
7 0.0279 679240 KTags->form( $params = [0 => ['lhs' => 'name', 'op' => '=', 'rhs' => 'frm_login'], 1 => ['lhs' => 'class', 'op' => '=', 'rhs' => 'simple-form'], 2 => ['lhs' => 'action', 'op' => '=', 'rhs' => ''], 3 => ['lhs' => 'method', 'op' => '=', 'rhs' => 'post'], 4 => ['lhs' => 'anchor', 'op' => '=', 'rhs' => '0'], 5 => ['lhs' => 'onSubmit', 'op' => '=', 'rhs' => 'this.k_install.disabled=true; return true;']], $node = class KNode { public $type = 1; public $name = 'form'; public $attributes = [0 => [...], 1 => [...], 2 => [...], 3 => [...], 4 => [...], 5 => [...]]; public $text = ''; public $ID = '_18_1248'; public $line_num = 18; public $char_num = 1248; public $children = [0 => class KNode { ... }, 1 => class KNode { ... }, 2 => class KNode { ... }] } ) ...\parser.php:467
8 0.0291 724248 KNode->get_HTML( ) ...\tags.php:5610
9 0.0291 724720 KTags->k_if( $params = NULL, $node = class KNode { public $type = 1; public $name = 'if'; public $attributes = [0 => [...]]; public $text = ''; public $ID = '_18_1276'; public $line_num = 18; public $char_num = 1276; public $children = [0 => class KNode { ... }, 1 => class KNode { ... }, 2 => class KNode { ... }, 3 => class KNode { ... }, 4 => class KNode { ... }, 5 => class KNode { ... }, 6 => class KNode { ... }, 7 => class KNode { ... }, 8 => class KNode { ... }, 9 => class KNode { ... }, 10 => class KNode { ... }, 11 => class KNode { ... }, 12 => class KNode { ... }, 13 => class KNode { ... }, 14 => class KNode { ... }, 15 => class KNode { ... }, 16 => class KNode { ... }, 17 => class KNode { ... }, 18 => class KNode { ... }, 19 => class KNode { ... }, 20 => class KNode { ... }, 21 => class KNode { ... }, 22 => class KNode { ... }, 23 => class KNode { ... }, 24 => class KNode { ... }, 25 => class KNode { ... }, 26 => class KNode { ... }] } ) ...\parser.php:467
10 0.0291 724720 KNode->get_HTML( ) ...\tags.php:1089
11 0.0291 725160 KTags->php( $params = [], $node = class KNode { public $type = 1; public $name = 'php'; public $attributes = []; public $text = ''; public $ID = '_18_1298'; public $line_num = 18; public $char_num = 1298; public $children = [0 => class KNode { ... }] } ) ...\parser.php:467
12 0.0291 743008 eval( 'C:\wamp64\www\jordan\couch\tags.php(3268) : eval()'d code ) ...\tags.php:3268
13 0.0291 743008 k_install( $name = 'xxx', $pwd = 'xxx', $email =
'xxx@gmail.com' ) ...\tags.php(3268) : eval()'d code:1
14 1.0636 716808 KAuth->__construct( $required_access_level = ???, $prompt = ??? ) ...\install.php:540
15 1.0670 717192 KAuth->_authenticate_cookie( ) ...\auth.php:79