如果你是宝塔,那么就看 宝塔面板安装wecenter数据库出错解决方案
https://wenda.wecenter.com/article/1845.html
如果不是宝塔的话,就打开WeCenter根目录找到/install/sql/install.sql文件删除这三行
SET GLOBAL innodb_large_prefix = ON;
SET GLOBAL innodb_file_format=Barracuda;
SET GLOBAL innodb_file_per_table=ON;