A PHP Error was encountered

Severity: User Warning

Message: Invalid EE Conditional Variable: {if:elseif 'On June 7, the St. Petersburg International Economic Forum (SPIEF) held a session “Science and Life: The Boundaries of the Possible”. The world's leading scientists and experts discussed the potential of the industry to confront global challenges and identified factors that create new opportunities for sustainable development of mankind.' AND lang == "en"}

Filename: libraries/Functions.php

Line Number: 2873

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /var/www/globalenergyprize.org/data/www/globalenergyprize.org/cmssystem/codeigniter/system/core/Exceptions.php:170)

Filename: core/Common.php

Line Number: 408

Fatal error: ob_start() [<a href='ref.outcontrol'>ref.outcontrol</a>]: Cannot use output buffering in output buffering display handlers in /var/www/globalenergyprize.org/data/www/globalenergyprize.org/cmssystem/codeigniter/system/core/Exceptions.php on line 166