ERROR: syntax error at or near "(" at character 51 when trying to activate the plugin

[buresdv]

Hello,

I'm an absolute myBB beginner, so bear with me if I did something obviously wrong. This is the first time I'm installing any plugins 😄

I have installed myBB through Docker Compose. The version I'm using is 1.8.37.

I tried installing the plugin by copying the inc folder inside upload to the folder inc inside the myBB installation. The plugin shows up in the plugin list:

However, when I click "Install and Activate" I get this error:

And this output in the database container:

2024-08-07 16:24:30.146 UTC [55] ERROR:  syntax error at or near "(" at character 51
2024-08-07 16:24:30.146 UTC [55] STATEMENT:  CREATE TABLE IF NOT EXISTS mybb_isango (
			cid int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
			uid int(10) UNSIGNED NOT NULL,
			gateway varchar(30) NOT NULL DEFAULT 'unknown',
			cuid varchar(160),
			email varchar(220) NOT NULL DEFAULT '',
			name varchar(220) NOT NULL DEFAULT '',
			dateline int(10) UNSIGNED NOT NULL,
			PRIMARY KEY (`cid`),
			INDEX (`cuid`, `uid`)
	        );

As a result, the plugin doesn't activate. What am I doing wrong?