Error: password authentication failed for user "strapi"

I am trying to run strapi locally using a sql lite database. Why trying to run yarn develop I get the following error:

error: password authentication failed for user "strapi"
at Parser.parseErrorMessage (/home/london/Desktop/Postoffice_backend/node_modules/pg-protocol/src/parser.ts:368:69) 
at Parser.handlePacket (/home/london/Desktop/Postoffice_backend/node_modules/pg-protocol/src/parser.ts:187:21) 
at Parser.parse (/home/london/Desktop/Postoffice_backend/node_modules/pg-protocol/src/parser.ts:102:30)  
at Socket.<anonymous>(/home/london/Desktop/Postoffice_backend/node_modules/pg-protocol/src/index.ts:7:48)        
at Socket.emit (node:events:519:28)at Socket.emit (node:domain:488:12)     
at addChunk (node:internal/streams/readable:559:12)                                         
at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)                      
at Readable.push (node:internal/streams/readable:390:5)                                     
at TCP.onStreamRead (node:internal/stream_base_commons:191:23) 

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