Symptoms
Main frame of CCPv1 malfunctioning - blank screens are being shown instead of content of corresponding page.
In console.log on UI host the following message could be found on attempt to open CCPv1:
ERROR [stderr] (default task-199) SystemId Unknown; Line #153; Column #46; The reference to entity "l" must end with the ';' delimiter.
Cause
Incorrect code for Web analytics script specified in PCP > System > Settings > Branding > Brands > %brand_name% > Web-analytics.
Currently it is not possible to use symbols < and > in Web analytics code since they are treated as HTML tag decorators. Th handle these symbols correctly, request POA-114897 has been submitted to Development team.
To improve HTML code validator, so the invalid code cannot be used, the request POA-113432: "HTML code validator improvement" has been submitted to the Development Team.
Also refer to an example of invalid code for Web analytics script described in KB131619.
Resolution
Remove symbols < and > from PCP > System > Settings > Branding > Brands > brand_name > Web-analytics.