I'm doing a module for a website with Magento 1.9 and I have the following error:
Mage registry key "_singleton / module_gs / Observer" already exists
Previously, while developing the module in local I gave the same error and solve it by executing these commands in SSH :
php -f shell/compiler.php -- disable
php -f shell/compiler.php -- clear
Once this is done, the error is solved and perfect.
So, what is the problem? Well, when you install the module on the client's website, it returns the error. To my surprise, I do not have access to SSH nor can those from the web site give it to me for any reason I do not know .
I wanted to know if there is any way to carry out these commands in any other way. Also, I have looked for other solutions to the problem, but only this one has solved the problem when I was on site.
I add that the Magento compiler is disabled from the admin panel and it is not enough, we need the clear .