by Susana Willemoës.
And with debug on it shows this:
Trazado de la pila (stack):
line 214 of /webservice/classes/reportbuilder/local/systemreports/tokens.php: TypeError thrown
line 146 of /webservice/classes/reportbuilder/local/systemreports/tokens.php: call to core_webservice\reportbuilder\local\systemreports\tokens::get_missing_capabilities()
line 655 of /reportbuilder/classes/local/report/column.php: call to core_webservice\reportbuilder\local\systemreports\tokens::core_webservice\reportbuilder\local\systemreports\{closure}()
line 235 of /reportbuilder/classes/table/system_report_table.php: call to core_reportbuilder\local\report\column->format_value()
line ? of unknownfile: call to core_reportbuilder\table\system_report_table::core_reportbuilder\table\{closure}()
line 233 of /reportbuilder/classes/table/system_report_table.php: call to array_walk()
line 84 of /lib/table/classes/sql_table.php: call to core_reportbuilder\table\system_report_table->format_row()
line 227 of /lib/table/classes/sql_table.php: call to core_table\sql_table->build_table()
line 58 of /reportbuilder/classes/output/renderer.php: call to core_table\sql_table->out()
line 78 of /lib/classes/output/plugin_renderer_base.php: call to core_reportbuilder\output\renderer->render_system_report_table()
line 132 of /reportbuilder/classes/external/system_report_exporter.php: call to core\output\plugin_renderer_base->render()
line 121 of /lib/classes/external/exporter.php: call to core_reportbuilder\external\system_report_exporter->get_other_values()
line 72 of /reportbuilder/classes/output/system_report.php: call to core\external\exporter->export()
line 45 of /reportbuilder/classes/output/renderer.php: call to core_reportbuilder\output\system_report->export_for_template()
line 78 of /lib/classes/output/plugin_renderer_base.php: call to core_reportbuilder\output\renderer->render_system_report()
line 295 of /reportbuilder/classes/system_report.php: call to core\output\plugin_renderer_base->render()
line 155 of /admin/webservice/tokens.php: call to core_reportbuilder\system_report->output()
Trazado de la pila (stack):
line 214 of /webservice/classes/reportbuilder/local/systemreports/tokens.php: TypeError thrown
line 146 of /webservice/classes/reportbuilder/local/systemreports/tokens.php: call to core_webservice\reportbuilder\local\systemreports\tokens::get_missing_capabilities()
line 655 of /reportbuilder/classes/local/report/column.php: call to core_webservice\reportbuilder\local\systemreports\tokens::core_webservice\reportbuilder\local\systemreports\{closure}()
line 235 of /reportbuilder/classes/table/system_report_table.php: call to core_reportbuilder\local\report\column->format_value()
line ? of unknownfile: call to core_reportbuilder\table\system_report_table::core_reportbuilder\table\{closure}()
line 233 of /reportbuilder/classes/table/system_report_table.php: call to array_walk()
line 84 of /lib/table/classes/sql_table.php: call to core_reportbuilder\table\system_report_table->format_row()
line 227 of /lib/table/classes/sql_table.php: call to core_table\sql_table->build_table()
line 58 of /reportbuilder/classes/output/renderer.php: call to core_table\sql_table->out()
line 78 of /lib/classes/output/plugin_renderer_base.php: call to core_reportbuilder\output\renderer->render_system_report_table()
line 132 of /reportbuilder/classes/external/system_report_exporter.php: call to core\output\plugin_renderer_base->render()
line 121 of /lib/classes/external/exporter.php: call to core_reportbuilder\external\system_report_exporter->get_other_values()
line 72 of /reportbuilder/classes/output/system_report.php: call to core\external\exporter->export()
line 45 of /reportbuilder/classes/output/renderer.php: call to core_reportbuilder\output\system_report->export_for_template()
line 78 of /lib/classes/output/plugin_renderer_base.php: call to core_reportbuilder\output\renderer->render_system_report()
line 295 of /reportbuilder/classes/system_report.php: call to core\output\plugin_renderer_base->render()
line 155 of /admin/webservice/tokens.php: call to core_reportbuilder\system_report->output()