Sad that updating your Lemmy instance to 0.18.1 broke your post and comment scores? Here’s a small SQL script to fix them:

 MERGE INTO "person_aggregates" AS "d"
 USING (SELECT "m"."id" AS "person_id"
             , coalesce("p"."post_count", 0) AS "post_count"
             , coalesce("p"."post_score", 0) AS "post_score"
             , coalesce("c"."comment_count", 0) AS "comment_count"
             , coalesce("c"."comment_score", 0) AS "comment_score"
          FROM "person" AS "m"
          LEFT JOIN (SELECT "p"."creator_id"
                          , count(distinct "p"."id") AS "post_count"
                          , sum("l"."score") AS "post_score"
                       FROM "post" AS "p"
                      INNER JOIN "post_like" AS "l"
                         ON "l"."post_id" = "p"."id"
                      WHERE NOT "p"."removed"
                        AND NOT "p"."deleted"
                      GROUP BY "p"."creator_id") AS "p"
            ON "p"."creator_id" = "m"."id"
          LEFT JOIN (SELECT "c"."creator_id"
                          , count(distinct "c"."id") AS "comment_count"
                          , sum("l"."score") AS "comment_score"
                       FROM "comment" AS "c"
                      INNER JOIN "comment_like" AS "l"
                         ON "l"."comment_id" = "c"."id"
                      WHERE NOT "c"."removed"
                        AND NOT "c"."deleted"
                      GROUP BY "c"."creator_id") AS "c"
            ON "c"."creator_id" = "m"."id"
         ORDER BY "m"."id") AS "s"
    ON "s"."person_id" = "d"."person_id"
  WHEN MATCHED AND ("d"."post_count" <> "s"."post_count" OR
                    "d"."post_score" <> "s"."post_score" OR
                    "d"."comment_count" <> "s"."comment_count" OR
                    "d"."comment_score" <> "s"."comment_score")
  THEN UPDATE
          SET "post_count" = "s"."post_count"
            , "post_score" = "s"."post_score"
            , "comment_count" = "s"."comment_count"
            , "comment_score" = "s"."comment_score";

As with all scripts that work directly on the PostgreSQL database: warranty void when connected, your kilometrage may vary, do not look into laser with remaining eye, etc.