Print or Export to pdf - not working

Hello,

I cannot print not export to pdf. It open a new tab in the browser and ask to login again.

2020-09-26 09:22:25.111 ***** ERROR ***** [V8.6.1] HACK ================================================================
2020-09-26 09:22:25.111 ***** ERROR ***** [V8.6.1] Try to hack detected
2020-09-26 09:22:25.111 ***** ERROR ***** [V8.6.1] Source Code = securityCheckPage(../report/../tool/jsonPlanning_pdf.php?print=true) - '/usr/share/projeqtor/tool' is not in allowed except for json queries
2020-09-26 09:22:25.111 ***** ERROR ***** [V8.6.1] QUERY_STRING = reportFile=..%2Ftool%2FjsonPlanning.php%3Fprint%3Dtrue&reportId=7&idProject=11&startDate=2020-09-26&endDate=&format=day&orientation=L&objectClass=&reportCodeName=PlanGantt&page=..%2Freport%2F..%2Ftool%2FjsonPlanning_pdf.php%3Fprint%3Dtrue&print=true&report=true&outMode=pdf&reportName=Gantt+planning
2020-09-26 09:22:25.111 ***** ERROR ***** [V8.6.1] REMOTE_ADDR = xxx.xxx.xxx.xxx
2020-09-26 09:22:25.111 ***** ERROR ***** [V8.6.1] SCRIPT_FILENAME = /usr/share/projeqtor/view/print.php
2020-09-26 09:22:25.111 ***** ERROR ***** [V8.6.1] REQUEST_URI = /projeqtor/view/print.php?reportFile=..%2Ftool%2FjsonPlanning.php%3Fprint%3Dtrue&reportId=7&idProject=11&startDate=2020-09-26&endDate=&format=day&orientation=L&objectClass=&reportCodeName=PlanGantt&page=..%2Freport%2F..%2Ftool%2FjsonPlanning_pdf.php%3Fprint%3Dtrue&print=true&report=true&outMode=pdf&reportName=Gantt+planning
2020-09-26 09:22:32.027 ===== TRACE ===== NEW CONNECTED USER 'admin'