Thank you very much for taking the time to respond.
The query that you specified returned zero rows and using phpMyAdmin I can see that the value of 'set_denied' is already 0.
The no 'Setup' link problem still exists.
Looking at developer console in Firefox, when I go to 'FastForm' and click on 'Input:Text' there is a console error as follows:
TypeError: SFR.forms[0].tabs[0] is undefined
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nuform.js

3
ReferenceError: nuSelectFFObjects is not defined
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index.php:1:1
Clicking on the 'Home' link throws another error in the console:
TypeError: w.tabs[0] is undefined
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The home page that appears is essentially blank, as shown in the previous attachment.
In Chrome I get errors such as:
nuform.js?ts=20180307085400:1186 Uncaught TypeError: Cannot read property 'id' of undefined
at nuSUBFORM (nuform.js?ts=20180307085400:1186)
at nuBuildEditObjects (nuform.js?ts=20180307085400:378)
at nuBuildForm (nuform.js?ts=20180307085400:95)
at successCallback (nuajax.js?ts=20180307085400:108)
at Object.success (nuajax.js?ts=20180307085400:15)
at fire (jquery.js?ts=20180307085400:3305)
at Object.fireWith [as resolveWith] (jquery.js?ts=20180307085400:3435)
at done (jquery.js?ts=20180307085400:9242)
at XMLHttpRequest.<anonymous> (jquery.js?ts=20180307085400:9484)
nuform.js?ts=20180307085400:1667 Uncaught TypeError: Cannot read property 'id' of undefined
at nuSetStartingTab (nuform.js?ts=20180307085400:1667)
at nuAddEditTabs (nuform.js?ts=20180307085400:1621)
at nuBuildForm (nuform.js?ts=20180307085400:85)
at successCallback (nuajax.js?ts=20180307085400:108)
at Object.success (nuajax.js?ts=20180307085400:15)
at fire (jquery.js?ts=20180307085400:3305)
at Object.fireWith [as resolveWith] (jquery.js?ts=20180307085400:3435)
at done (jquery.js?ts=20180307085400:9242)
at XMLHttpRequest.<anonymous> (jquery.js?ts=20180307085400:9484)
Not a clue at the moment why these errors are occuring, so be very grateful for further advice.
Cheers Ron.