Find the following:
include/utils/file_utils.php:465:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
custom/Extension/application/Ext/LogicHooks/SugarFTSHooks.php:8:$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
custom/application/Ext/LogicHooks/logichooks.ext.php:42:$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
suitecrm.log:1582:Fri Dec 29 22:44:16 2017 [20213][3f2a254b-3c4f-a453-b5f1-59ef05ea57e9][ERROR] Unable to load custom logic file: include/SugarSearchEngine/SugarSearchEngineQueueManager.php
sugarcrm.log:1:Wed May 9 07:37:24 2018 [13008][9a74bac9-46c9-cc74-aaf8-5ab898fa7b5e][ERROR] Unable to load custom logic file: include/SugarSearchEngine/SugarSearchEngineQueueManager.php
upload/upgrades/patch/SuiteCRM-Upgrade-7.5.x-to-7.6.6-restore/include/utils/file_utils.php:462:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
upload/upgrades/patch/SuiteCRM-Upgrade-7.3.x-to-7.4.3-restore/install/performSetup.php:373:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
upload/upgrades/patch/SuiteCRM-Upgrade-7.3.x-to-7.4.3-restore/modules/UpgradeWizard/end.php:71:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
upload/upgrades/patch/SuiteCRM-Upgrade-7.1.x-to-7.2.1-restore/install/performSetup.php:370:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
upload/upgrades/patch/SuiteCRM-Upgrade-7.1.x-to-7.2.1-restore/modules/UpgradeWizard/silentUpgrade_step2.php:396:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
upload/upgrades/patch/SuiteCRM-Upgrade-7.1.x-to-7.2.1-restore/modules/UpgradeWizard/end.php:71:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
upload/upgrades/patch/SuiteCRM-Upgrade-7.4.x-to-7.5.5-restore/install/performSetup.php:397:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
upload/upgrades/patch/SuiteCRM-Upgrade-7.2.x-to-7.3.2-restore/include/utils/file_utils.php:456:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
upload/upgrades/patch/SuiteCRM-Upgrade-7.2.x-to-7.3.2-restore/modules/UpgradeWizard/silentUpgrade_step2.php:396:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
upload/upgrades/patch/SuiteCRM-Upgrade-7.2.x-to-7.3.2-restore/modules/UpgradeWizard/end.php:71:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');
modules/UpgradeWizard/silentUpgrade_step2.php:396:\$hook_array['after_save'][] = array(1, 'fts', 'include/SugarSearchEngine/SugarSearchEngineQueueManager.php', 'SugarSearchEngineQueueManager', 'populateIndexQueue');