Knowage report is very slow , also not able to migrate it to new server

Question

I need to migrate all reports from  AWS server to our own VM  Server. So i just install knowage 6.4.0 in VM freshly and just replace the Database having all reports , Its working but the problem is that after deploy it in production , Knowage is very very slow (Almost 3 to 5 mins to load document) , Even reports are also not showing in Chrome browser  

Environment - 

CENTOS 7 

DB - Mariadb 16 GB RAM 8 VM CORE  

Below is the Error while open in chrome browser

angular.js:68 Uncaught Error: [$injector:modulerr] Failed to instantiate module documentExecutionMasterModule due to: Error: [$injector:nomod] Module 'documentExecutionMasterModule' is not available! You either misspelled the module name or forgot to load it. If registering a module ensure that you specify the dependencies as the second argument.

Comments

Hello,

usually you get that error when the build had some problem and usually you also get a 404 error on a js.(guess documentExecutionMaster.js)
Can you please check if you get that error too?

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Hi,

Exactly , documentExecutionMasterModule error  , How to fix this , We actually just install it and i dont know is any need to change the source code or not !! Please help 

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Hi 

It also show and error while run it on firefox web browser 

ERROR : 

DOMException: "Permission denied to access property "angular" on cross-origin object"

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Do you have the possibility to install from scratch or to update to a newer version? (7.2.6 ie?)

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Yes , but if i do that may lost all the reports ? I created 100+ reports , cockpit dashboard etc .. Yeah is not possible to recreate it from scratch that's why i just replace the database , Is any other method to miggrate report from one vm to another ?  ,