One of the first errors that i got was that i was using the same browser for both installations and logged as administrator, but as soon as i changed that i got the responses that i wrote in the first comment.
Finally i got access to the LTI provider and i set the option of display all the errors and i have this:
"
textlib_get_instance() is deprecated. Please use static calling textlib::functioname() instead.
line 2905 of \lib\deprecatedlib.php: call to debugging()
line 91 of \local\ltiprovider\tool.php: call to textlib_get_instance()
Skip to main content
This page did not call $PAGE->set_url(...). Using http://myltiprovider/local/ltiprovider/tool.php?id=2
line 557 of \lib\pagelib.php: call to debugging()
line 717 of \lib\pagelib.php: call to moodle_page->magic_get_url()
line 530 of \lib\outputrenderers.php: call to moodle_page->__get()
line 47 of \theme\oelts_hub\layout\home.php: call to core_renderer->login_info()
line 807 of \lib\outputrenderers.php: call to include()
line 737 of \lib\outputrenderers.php: call to core_renderer->render_page_layout()
line 683 of \lib\outputrenderers.php: call to core_renderer->header()
line ? of unknownfile: call to core_renderer->redirect_message()
line 1455 of \lib\setuplib.php: call to call_user_func_array()
line 2536 of \lib\weblib.php: call to bootstrap_renderer->__call()
line 2536 of \lib\weblib.php: call to bootstrap_renderer->redirect_message()
line 266 of \local\ltiprovider\tool.php: call to redirect()
"
So i will check if i made some changes in the core of moodle that create those errors.
by the way, the plugin version of the LTI provider is 2011121706
Regards,
by Jairo Andrés Franco.