lesson process control

Our company has 2 Websites for our business-Online Education:
https://www.visacpd.com/,this is a portal to lead guest to our content which is located in https://www.allcpd.com/ .

In visacpd.com,
we have menu bar on top which has 8 menu items, there are 4 course categories ,introduction and contact etc, of our company. In the body of page we just list the course’s title and a detail button.

In allcpd.com, we have these modules:
1 register/login/logout.
2 user/instructor/admin profile
3 shopping cart.
4 checkout, payment : Paypal,Credit(optional).
5 email notification.
6 course learning (scorm file playing), and quiz
7 add/delete/edit course
8 certificate.

Business logical:
Guest and user
Guest will be leaded to our content website(allcpd.com) when he click course’s detail button in portal page(visacpd.com), guest will see the course description page,he will be asked to register/login when he click “get this course” button.

Once registered guest will become our “user” and user is able to buy our course,the course will appear in user’s account after payment . Then he can enroll this course.

Guest can also register as instructor or admin so that they can perform the function for their role(instructor can add/edit/delete course,issue assignments, admin can change some general settings of our website).

When user study a course, he is required to learn the lessons in order ,our system controls the learning process,this means that the lesson’s “complete” button is disabled until the lesson is really studied/played/watched, at this moment the user can click “complete ” button to mark the status of lesson to be “finished”.
All the status of the lessons and grade of quiz are recorded, if the user pass the criteria(for example :all lesson finished, quiz grade 80% correct) the certificate will be issued automatically.

Instructor:
A registered user can be change to be a instructor by admin, an instructor have the right to add new course(edit,upload scorm and other media),set course’s price,delete course,make quiz, issue assignment,check his student’s status.

Admin:
Admin have the right to change user’s role,delete a user,add course category.

This is our main Business logic.

New LMS in construction:cpd-institute.com

We are trying to integrate these 2 web-sties into one , based on WordPress.

Our target is to build a website to realize most functions listed above.
In order to upload scorm file we choose CLUEVO, Woocommerce( shopping car) and Learnpress.

We copied the portal pages(visacpd.com) successfully.
We also realized:
1 register/login/logout.
2 user/instructor/admin profile
3 shopping cart.
4 checkout, payment : Paypal,Credit.
5 course learning (scorm file playing), and quiz
6 add/delete/edit course
7 certificate.

Business logical:
Guest and user
Guest can register either from the “register/login” link in top menu or click course’s title button/detail button.
After registration ,user will be able to buy course by click”get this course” from course description page.Then the course is put in shopping cart, click the “check out” button ,user will see a “payment method” page, he can choose “paypal” or “credit” and will go to “billing page” to fill out buyer’s information, and pay at last.

Now the user will receive email notification,all the course ,bill information included.
When user go to his account/profile he will see this course and he can click “continue” to learn.
We are not able to control the learning process here, in another word, the user can click ”complete” button without studying/learning the lesson, to mark the lesson as “completed”.
We hope that we can set “complete ” button disabled until the lesson/media
is really finished,then the button is “enabled” .

We also realized this function: “finish” the course and issue certificate.

Instructor:
Admin:

We can implement these jobs at the back end of WordPress.

Technique specification in our new website:
Install scorm module and create scorm course
1 We create Scorm module, we add module in CLUEVO?“Modules”?and then install scorm files,then we have CLUEVO Scorm post.
2 We go to Learning Tree to add new course, we create chapters in the learning tree,add the CLUEVO Scorm modules to each of the chapter.

Create course as a product in learnpress
1 We create course in?“learnpress”, in the course we create lessons, then embedded link of SCORM module in the lessons, set the price per-reques and other attribute.

Till now the courses are created.
We tested as a user, all the procedure worked well untill 24-jul-2020.

On 25-jul-2020, we found these problem:

1 the logo in header disappeared in most pages.
2 the picture in body of the pages disappeared.
3 the checkout page does not work, the “Credit” payment method disappeared,
no response when we click “paypal” to pay.
4 the Scorm file can’t be played.

?We tried to resolve the problem ,we deleted the old scorm modules and courses, repeat the create procedure to create new scorm module, new lesson and new course, but the new course can’t be played , the other problem also persist.
?
Could you please give us trouble shooting guideline on these issues?
We assume that the?“Complete”?button can be disabled(or hide this button)to prevent the user from jumping to the end,so that the user can click this button to mark the course “completed” only when he really watched/read the media, because this is very common function in all kinds of E-learning system, but how can we do that?Can you provide solutions?

The page I need help with: [log in to see the link]