Help me with this error:
KnexTimeoutError: Knex: Timeout acquiring a connection. The pool is probably full. Are you missing a .transacting(trx) call?\n    at Client_MySQL.acquireConnection (/server/node_modules/knex/lib/client.js:305:26)\n    at runNextTicks (internal/process/task_queues.js:60:5)\n    at listOnTimeout (internal/timers.js:526:9)\n    at processTimers (internal/timers.js:500:7)\n    at async QueryRunner.executeUsingManagedConnection (/server/node_modules/@adonisjs/NAME_1/build/src/QueryRunner/index.js:112:28)\n    at async BelongsToQueryBuilder.execQuery (/server/node_modules/@adonisjs/NAME_1/build/src/Orm/QueryBuilder/index.js:185:22)\n    at async BelongsToQueryBuilder.exec (/server/node_modules/@adonisjs/NAME_1/build/src/Orm/QueryBuilder/index.js:658:24)\n    at async Preloader.processRelationForMany (/server/node_modules/@adonisjs/NAME_1/build/src/Orm/Preloader/index.js:92:24)\n    at async Promise.all (index 0)\n    at async Preloader.processAllForMany (/server/node_modules/@adonisjs/NAME_1/build/src/Orm/Preloader/index.js:149:9)\n    at async ModelQueryBuilder.execQuery (/server/node_modules/@adonisjs/NAME_1/build/src/Orm/QueryBuilder/index.js:211:9)\n    at async ModelQueryBuilder.exec (/server/node_modules/@adonisjs/NAME_1/build/src/Orm/QueryBuilder/index.js:658:24)\n    at async DataLoader.CityByIdLoadFn [as _batchLoadFn] (/server/app/Graphql/Loaders/CityLoaders.js:25:21 Provide exactly two different responses that are separated with 6 asterisk symbols: ******.
user